Yoshi2889 / SMF2.1

Sources/Profile-Modify.php

<?php

/**
 * This file has the primary job of showing and editing people's profiles.
 * 	It also allows the user to change some of their or another's preferences,
 * 	and such things
 *
 * Simple Machines Forum (SMF)
 *
 * @package SMF
 * @author Simple Machines https://www.simplemachines.org
 * @copyright 2020 Simple Machines and individual contributors
 * @license https://www.simplemachines.org/about/smf/license.php BSD
 *
 * @version 2.1 RC2
 */

if (!defined('SMF'))
	die('No direct access...');

/**
 * This defines every profile field known to man.
 *
 * @param bool $force_reload Whether to reload the data
 */
function loadProfileFields($force_reload = false)
{
	global $context, $profile_fields, $txt, $scripturl, $modSettings, $user_info, $smcFunc, $cur_profile, $language;
	global $sourcedir, $profile_vars, $settings;

	// Don't load this twice!
	if (!empty($profile_fields) && !$force_reload)
		return;

	/* This horrific array defines all the profile fields in the whole world!
		In general each "field" has one array - the key of which is the database column name associated with said field. Each item
		can have the following attributes:

				string $type:			The type of field this is - valid types are:
					- callback:		This is a field which has its own callback mechanism for templating.
					- check:		A simple checkbox.
					- hidden:		This doesn't have any visual aspects but may have some validity.
					- password:		A password box.
					- select:		A select box.
					- text:			A string of some description.

				string $label:			The label for this item - default will be $txt[$key] if this isn't set.
				string $subtext:		The subtext (Small label) for this item.
				int $size:			Optional size for a text area.
				array $input_attr:		An array of text strings to be added to the input box for this item.
				string $value:			The value of the item. If not set $cur_profile[$key] is assumed.
				string $permission:		Permission required for this item (Excluded _any/_own subfix which is applied automatically).
				function $input_validate:	A runtime function which validates the element before going to the database. It is passed
								the relevant $_POST element if it exists and should be treated like a reference.

								Return types:
					- true:			Element can be stored.
					- false:		Skip this element.
					- a text string:	An error occured - this is the error message.

				function $preload:		A function that is used to load data required for this element to be displayed. Must return
								true to be displayed at all.

				string $cast_type:		If set casts the element to a certain type. Valid types (bool, int, float).
				string $save_key:		If the index of this element isn't the database column name it can be overriden
								with this string.
				bool $is_dummy:			If set then nothing is acted upon for this element.
				bool $enabled:			A test to determine whether this is even available - if not is unset.
				string $link_with:		Key which links this field to an overall set.

		Note that all elements that have a custom input_validate must ensure they set the value of $cur_profile correct to enable
		the changes to be displayed correctly on submit of the form.

	*/

	$profile_fields = array(
		'avatar_choice' => array(
			'type' => 'callback',
			'callback_func' => 'avatar_select',
			// This handles the permissions too.
			'preload' => 'profileLoadAvatarData',
			'input_validate' => 'profileSaveAvatarData',
			'save_key' => 'avatar',
		),
		'bday1' => array(
			'type' => 'callback',
			'callback_func' => 'birthdate',
			'permission' => 'profile_extra',
			'preload' => function() use ($cur_profile, &$context)
			{
				// Split up the birthdate....
				list ($uyear, $umonth, $uday) = explode('-', empty($cur_profile['birthdate']) || $cur_profile['birthdate'] === '1004-01-01' ? '--' : $cur_profile['birthdate']);
				$context['member']['birth_date'] = array(
					'year' => $uyear,
					'month' => $umonth,
					'day' => $uday,
				);

				return true;
			},
			'input_validate' => function(&$value) use (&$cur_profile, &$profile_vars)
			{
				if (isset($_POST['bday2'], $_POST['bday3']) && $value > 0 && $_POST['bday2'] > 0)
				{
					// Set to blank?
					if ((int) $_POST['bday3'] == 1 && (int) $_POST['bday2'] == 1 && (int) $value == 1)
						$value = '1004-01-01';
					else
						$value = checkdate($value, $_POST['bday2'], $_POST['bday3'] < 1004 ? 1004 : $_POST['bday3']) ? sprintf('%04d-%02d-%02d', $_POST['bday3'] < 1004 ? 1004 : $_POST['bday3'], $_POST['bday1'], $_POST['bday2']) : '1004-01-01';
				}
				else
					$value = '1004-01-01';

				$profile_vars['birthdate'] = $value;
				$cur_profile['birthdate'] = $value;
				return false;
			},
		),
		// Setting the birthdate the old style way?
		'birthdate' => array(
			'type' => 'hidden',
			'permission' => 'profile_extra',
			'input_validate' => function(&$value) use ($cur_profile)
			{
				// @todo Should we check for this year and tell them they made a mistake :P? (based on coppa at least?)
				if (preg_match('/(\d{4})[\-\., ](\d{2})[\-\., ](\d{2})/', $value, $dates) === 1)
				{
					$value = checkdate($dates[2], $dates[3], $dates[1] < 4 ? 4 : $dates[1]) ? sprintf('%04d-%02d-%02d', $dates[1] < 4 ? 4 : $dates[1], $dates[2], $dates[3]) : '1004-01-01';
					return true;
				}
				else
				{
					$value = empty($cur_profile['birthdate']) ? '1004-01-01' : $cur_profile['birthdate'];
					return false;
				}
			},
		),
		'date_registered' => array(
			'type' => 'date',
			'value' => empty($cur_profile['date_registered']) ? $txt['not_applicable'] : strftime('%Y-%m-%d', $cur_profile['date_registered'] + ($user_info['time_offset'] + $modSettings['time_offset']) * 3600),
			'label' => $txt['date_registered'],
			'log_change' => true,
			'permission' => 'moderate_forum',
			'input_validate' => function(&$value) use ($txt, $user_info, $modSettings, $cur_profile, $context)
			{
				// Bad date!  Go try again - please?
				if (($value = strtotime($value)) === false)
				{
					$value = $cur_profile['date_registered'];
					return $txt['invalid_registration'] . ' ' . strftime('%d %b %Y ' . (strpos($user_info['time_format'], '%H') !== false ? '%I:%M:%S %p' : '%H:%M:%S'), forum_time(false));
				}

				// As long as it doesn't equal "N/A"...
				elseif ($value != $txt['not_applicable'] && $value != strtotime(strftime('%Y-%m-%d', $cur_profile['date_registered'] + ($user_info['time_offset'] + $modSettings['time_offset']) * 3600)))
					$value = $value - ($user_info['time_offset'] + $modSettings['time_offset']) * 3600;

				else
					$value = $cur_profile['date_registered'];

				return true;
			},
		),
		'email_address' => array(
			'type' => 'email',
			'label' => $txt['user_email_address'],
			'subtext' => $txt['valid_email'],
			'log_change' => true,
			'permission' => 'profile_password',
			'js_submit' => !empty($modSettings['send_validation_onChange']) ? '
	form_handle.addEventListener(\'submit\', function(event)
	{
		if (this.email_address.value != "' . (!empty($cur_profile['email_address']) ? $cur_profile['email_address'] : '') . '")
		{
			alert(' . JavaScriptEscape($txt['email_change_logout']) . ');
			return true;
		}
	}, false);' : '',
			'input_validate' => function(&$value)
			{
				global $context, $old_profile, $profile_vars, $sourcedir, $modSettings;

				if (strtolower($value) == strtolower($old_profile['email_address']))
					return false;

				$isValid = profileValidateEmail($value, $context['id_member']);

				// Do they need to revalidate? If so schedule the function!
				if ($isValid === true && !empty($modSettings['send_validation_onChange']) && !allowedTo('moderate_forum'))
				{
					require_once($sourcedir . '/Subs-Members.php');
					$profile_vars['validation_code'] = generateValidationCode();
					$profile_vars['is_activated'] = 2;
					$context['profile_execute_on_save'][] = 'profileSendActivation';
					unset($context['profile_execute_on_save']['reload_user']);
				}

				return $isValid;
			},
		),
		// Selecting group membership is a complicated one so we treat it separate!
		'id_group' => array(
			'type' => 'callback',
			'callback_func' => 'group_manage',
			'permission' => 'manage_membergroups',
			'preload' => 'profileLoadGroups',
			'log_change' => true,
			'input_validate' => 'profileSaveGroups',
		),
		'id_theme' => array(
			'type' => 'callback',
			'callback_func' => 'theme_pick',
			'permission' => 'profile_extra',
			'enabled' => $modSettings['theme_allow'] || allowedTo('admin_forum'),
			'preload' => function() use ($smcFunc, &$context, $cur_profile, $txt)
			{
				$request = $smcFunc['db_query']('', '
					SELECT value
					FROM {db_prefix}themes
					WHERE id_theme = {int:id_theme}
						AND variable = {string:variable}
					LIMIT 1', array(
						'id_theme' => $cur_profile['id_theme'],
						'variable' => 'name',
					)
				);
				list ($name) = $smcFunc['db_fetch_row']($request);
				$smcFunc['db_free_result']($request);

				$context['member']['theme'] = array(
					'id' => $cur_profile['id_theme'],
					'name' => empty($cur_profile['id_theme']) ? $txt['theme_forum_default'] : $name
				);
				return true;
			},
			'input_validate' => function(&$value)
			{
				$value = (int) $value;
				return true;
			},
		),
		'lngfile' => array(
			'type' => 'select',
			'options' => function() use (&$context)
			{
				return $context['profile_languages'];
			},
			'label' => $txt['preferred_language'],
			'permission' => 'profile_identity',
			'preload' => 'profileLoadLanguages',
			'enabled' => !empty($modSettings['userLanguage']),
			'value' => empty($cur_profile['lngfile']) ? $language : $cur_profile['lngfile'],
			'input_validate' => function(&$value) use (&$context, $cur_profile)
			{
				// Load the languages.
				profileLoadLanguages();

				if (isset($context['profile_languages'][$value]))
				{
					if ($context['user']['is_owner'] && empty($context['password_auth_failed']))
						$_SESSION['language'] = $value;
					return true;
				}
				else
				{
					$value = $cur_profile['lngfile'];
					return false;
				}
			},
		),
		// The username is not always editable - so adjust it as such.
		'member_name' => array(
			'type' => allowedTo('admin_forum') && isset($_GET['changeusername']) ? 'text' : 'label',
			'label' => $txt['username'],
			'subtext' => allowedTo('admin_forum') && !isset($_GET['changeusername']) ? '[<a href="' . $scripturl . '?action=profile;u=' . $context['id_member'] . ';area=account;changeusername" style="font-style: italic;">' . $txt['username_change'] . '</a>]' : '',
			'log_change' => true,
			'permission' => 'profile_identity',
			'prehtml' => allowedTo('admin_forum') && isset($_GET['changeusername']) ? '<div class="alert">' . $txt['username_warning'] . '</div>' : '',
			'input_validate' => function(&$value) use ($sourcedir, $context, $user_info, $cur_profile)
			{
				if (allowedTo('admin_forum'))
				{
					// We'll need this...
					require_once($sourcedir . '/Subs-Auth.php');

					// Maybe they are trying to change their password as well?
					$resetPassword = true;
					if (isset($_POST['passwrd1']) && $_POST['passwrd1'] != '' && isset($_POST['passwrd2']) && $_POST['passwrd1'] == $_POST['passwrd2'] && validatePassword($_POST['passwrd1'], $value, array($cur_profile['real_name'], $user_info['username'], $user_info['name'], $user_info['email'])) == null)

It seems like you are loosely comparing validatePassword($_POST['passwrd1'], $value, array($cur_profile['real_name'], $user_info['username'], $user_info['name'], $user_info['email'])) of type null|string against null; this is ambiguous if the string can be empty. Consider using a strict comparison === instead.

						$resetPassword = false;

					// Do the reset... this will send them an email too.
					if ($resetPassword)
						resetPassword($context['id_member'], $value);
					elseif ($value !== null)
					{
						validateUsername($context['id_member'], trim(preg_replace('~[\t\n\r \x0B\0' . ($context['utf8'] ? '\x{A0}\x{AD}\x{2000}-\x{200F}\x{201F}\x{202F}\x{3000}\x{FEFF}' : '\x00-\x08\x0B\x0C\x0E-\x19\xA0') . ']+~' . ($context['utf8'] ? 'u' : ''), ' ', $value)));
						updateMemberData($context['id_member'], array('member_name' => $value));

						// Call this here so any integrated systems will know about the name change (resetPassword() takes care of this if we're letting SMF generate the password)
						call_integration_hook('integrate_reset_pass', array($cur_profile['member_name'], $value, $_POST['passwrd1']));
					}
				}
				return false;
			},
		),
		'passwrd1' => array(
			'type' => 'password',
			'label' => ucwords($txt['choose_pass']),
			'subtext' => $txt['password_strength'],
			'size' => 20,
			'value' => '',
			'permission' => 'profile_password',
			'save_key' => 'passwd',
			// Note this will only work if passwrd2 also exists!
			'input_validate' => function(&$value) use ($sourcedir, $user_info, $smcFunc, $cur_profile)
			{
				// If we didn't try it then ignore it!
				if ($value == '')
					return false;

				// Do the two entries for the password even match?
				if (!isset($_POST['passwrd2']) || $value != $_POST['passwrd2'])
					return 'bad_new_password';

				// Let's get the validation function into play...
				require_once($sourcedir . '/Subs-Auth.php');
				$passwordErrors = validatePassword($value, $cur_profile['member_name'], array($cur_profile['real_name'], $user_info['username'], $user_info['name'], $user_info['email']));

				// Were there errors?
				if ($passwordErrors != null)

It seems like you are loosely comparing $passwordErrors of type null|string against null; this is ambiguous if the string can be empty. Consider using a strict comparison !== instead.

					return 'password_' . $passwordErrors;

				// Set up the new password variable... ready for storage.
				$value = hash_password($cur_profile['member_name'], un_htmlspecialchars($value));

				return true;
			},
		),
		'passwrd2' => array(
			'type' => 'password',
			'label' => ucwords($txt['verify_pass']),
			'size' => 20,
			'value' => '',
			'permission' => 'profile_password',
			'is_dummy' => true,
		),
		'personal_text' => array(
			'type' => 'text',
			'label' => $txt['personal_text'],
			'log_change' => true,
			'input_attr' => array('maxlength="50"'),
			'size' => 50,
			'permission' => 'profile_blurb',
			'input_validate' => function(&$value) use ($smcFunc)
			{
				if ($smcFunc['strlen']($value) > 50)
					return 'personal_text_too_long';

				return true;
			},
		),
		// This does ALL the pm settings
		'pm_prefs' => array(
			'type' => 'callback',
			'callback_func' => 'pm_settings',
			'permission' => 'pm_read',
			'preload' => function() use (&$context, $cur_profile)
			{
				$context['display_mode'] = $cur_profile['pm_prefs'] & 3;
				$context['receive_from'] = !empty($cur_profile['pm_receive_from']) ? $cur_profile['pm_receive_from'] : 0;

				return true;
			},
			'input_validate' => function(&$value) use (&$cur_profile, &$profile_vars)
			{
				// Simple validate and apply the two "sub settings"
				$value = max(min($value, 2), 0);

				$cur_profile['pm_receive_from'] = $profile_vars['pm_receive_from'] = max(min((int) $_POST['pm_receive_from'], 4), 0);

				return true;
			},
		),
		'posts' => array(
			'type' => 'int',
			'label' => $txt['profile_posts'],
			'log_change' => true,
			'size' => 7,
			'permission' => 'moderate_forum',
			'input_validate' => function(&$value)
			{
				if (!is_numeric($value))
					return 'digits_only';
				else
					$value = $value != '' ? strtr($value, array(',' => '', '.' => '', ' ' => '')) : 0;
				return true;
			},
		),
		'real_name' => array(
			'type' => allowedTo('profile_displayed_name_own') || allowedTo('profile_displayed_name_any') || allowedTo('moderate_forum') ? 'text' : 'label',
			'label' => $txt['name'],
			'subtext' => $txt['display_name_desc'],
			'log_change' => true,
			'input_attr' => array('maxlength="60"'),
			'permission' => 'profile_displayed_name',
			'enabled' => allowedTo('profile_displayed_name_own') || allowedTo('profile_displayed_name_any') || allowedTo('moderate_forum'),
			'input_validate' => function(&$value) use ($context, $smcFunc, $sourcedir, $cur_profile)
			{
				$value = trim(preg_replace('~[\t\n\r \x0B\0' . ($context['utf8'] ? '\x{A0}\x{AD}\x{2000}-\x{200F}\x{201F}\x{202F}\x{3000}\x{FEFF}' : '\x00-\x08\x0B\x0C\x0E-\x19\xA0') . ']+~' . ($context['utf8'] ? 'u' : ''), ' ', $value));

				if (trim($value) == '')
					return 'no_name';
				elseif ($smcFunc['strlen']($value) > 60)
					return 'name_too_long';
				elseif ($cur_profile['real_name'] != $value)
				{
					require_once($sourcedir . '/Subs-Members.php');
					if (isReservedName($value, $context['id_member']))
						return 'name_taken';
				}
				return true;
			},
		),
		'secret_question' => array(
			'type' => 'text',
			'label' => $txt['secret_question'],
			'subtext' => $txt['secret_desc'],
			'size' => 50,
			'permission' => 'profile_password',
		),
		'secret_answer' => array(
			'type' => 'text',
			'label' => $txt['secret_answer'],
			'subtext' => $txt['secret_desc2'],
			'size' => 20,
			'postinput' => '<span class="smalltext"><a href="' . $scripturl . '?action=helpadmin;help=secret_why_blank" onclick="return reqOverlayDiv(this.href);"><span class="main_icons help"></span> ' . $txt['secret_why_blank'] . '</a></span>',
			'value' => '',
			'permission' => 'profile_password',
			'input_validate' => function(&$value) use ($cur_profile)
			{
				$value = $value != '' ? hash_password($cur_profile['member_name'], $value) : '';
				return true;
			},
		),
		'signature' => array(
			'type' => 'callback',
			'callback_func' => 'signature_modify',
			'permission' => 'profile_signature',
			'enabled' => substr($modSettings['signature_settings'], 0, 1) == 1,
			'preload' => 'profileLoadSignatureData',
			'input_validate' => 'profileValidateSignature',
		),
		'show_online' => array(
			'type' => 'check',
			'label' => $txt['show_online'],
			'permission' => 'profile_identity',
			'enabled' => !empty($modSettings['allow_hideOnline']) || allowedTo('moderate_forum'),
		),
		'smiley_set' => array(
			'type' => 'callback',
			'callback_func' => 'smiley_pick',
			'enabled' => !empty($modSettings['smiley_sets_enable']),
			'permission' => 'profile_extra',
			'preload' => function() use ($modSettings, &$context, &$txt, $cur_profile, $smcFunc, $settings, $language)
			{
				$context['member']['smiley_set']['id'] = empty($cur_profile['smiley_set']) ? '' : $cur_profile['smiley_set'];
				$context['smiley_sets'] = explode(',', 'none,,' . $modSettings['smiley_sets_known']);
				$set_names = explode("\n", $txt['smileys_none'] . "\n" . $txt['smileys_forum_board_default'] . "\n" . $modSettings['smiley_sets_names']);

				$filenames = array();
				$result = $smcFunc['db_query']('', '
					SELECT f.filename, f.smiley_set
					FROM {db_prefix}smiley_files AS f
						JOIN {db_prefix}smileys AS s ON (s.id_smiley = f.id_smiley)
					WHERE s.code = {string:smiley}',
					array(
						'smiley' => ':)',
					)
				);
				while ($row = $smcFunc['db_fetch_assoc']($result))
					$filenames[$row['smiley_set']] = $row['filename'];
				$smcFunc['db_free_result']($result);

				// In case any sets don't contain a ':)' smiley
				$no_smiley_sets = array_diff(explode(',', $modSettings['smiley_sets_known']), array_keys($filenames));
				foreach ($no_smiley_sets as $set)
				{
					$allowedTypes = array('gif', 'png', 'jpg', 'jpeg', 'tiff', 'svg');
					$images = glob(implode('/', array($modSettings['smileys_dir'], $set, '*.{' . (implode(',', $allowedTypes) . '}'))), GLOB_BRACE);

					// Just use some image or other
					if (!empty($images))
					{
						$image = array_pop($images);
						$filenames[$set] = pathinfo($image, PATHINFO_BASENAME);
					}
					// No images at all? That's no good. Let the admin know, and quietly skip for this user.
					else
					{
						loadLanguage('Errors', $language);
						log_error(sprintf($txt['smiley_set_dir_not_found'], $set_names[array_search($set, $context['smiley_sets'])]));

						$context['smiley_sets'] = array_filter($context['smiley_sets'], function($v) use ($set)
							{
								return $v != $set;
							});
					}
				}

				foreach ($context['smiley_sets'] as $i => $set)
				{
					$context['smiley_sets'][$i] = array(
						'id' => $smcFunc['htmlspecialchars']($set),
						'name' => $smcFunc['htmlspecialchars']($set_names[$i]),
						'selected' => $set == $context['member']['smiley_set']['id']
					);

					if ($set === 'none')
						$context['smiley_sets'][$i]['preview'] = $settings['images_url'] . '/blank.png';
					elseif ($set === '')
					{
						$default_set = !empty($settings['smiley_sets_default']) ? $settings['smiley_sets_default'] : $modSettings['smiley_sets_default'];
						$context['smiley_sets'][$i]['preview'] = implode('/', array($modSettings['smileys_url'], $default_set, $filenames[$default_set]));
					}
					else
						$context['smiley_sets'][$i]['preview'] = implode('/', array($modSettings['smileys_url'], $set, $filenames[$set]));

					if ($context['smiley_sets'][$i]['selected'])
					{
						$context['member']['smiley_set']['name'] = $set_names[$i];
						$context['member']['smiley_set']['preview'] = $context['smiley_sets'][$i]['preview'];
					}

					$context['smiley_sets'][$i]['preview'] = $smcFunc['htmlspecialchars']($context['smiley_sets'][$i]['preview']);
				}

				return true;
			},
			'input_validate' => function(&$value)
			{
				global $modSettings;

				$smiley_sets = explode(',', $modSettings['smiley_sets_known']);
				if (!in_array($value, $smiley_sets) && $value != 'none')
					$value = '';
				return true;
			},
		),
		// Pretty much a dummy entry - it populates all the theme settings.
		'theme_settings' => array(
			'type' => 'callback',
			'callback_func' => 'theme_settings',
			'permission' => 'profile_extra',
			'is_dummy' => true,
			'preload' => function() use (&$context, $user_info, $modSettings)
			{
				loadLanguage('Settings');

				$context['allow_no_censored'] = false;
				if ($user_info['is_admin'] || $context['user']['is_owner'])
					$context['allow_no_censored'] = !empty($modSettings['allow_no_censored']);

				return true;
			},
		),
		'tfa' => array(
			'type' => 'callback',
			'callback_func' => 'tfa',
			'permission' => 'profile_password',
			'enabled' => !empty($modSettings['tfa_mode']),
			'preload' => function() use (&$context, $cur_profile)
			{
				$context['tfa_enabled'] = !empty($cur_profile['tfa_secret']);

				return true;
			},
		),
		'time_format' => array(
			'type' => 'callback',
			'callback_func' => 'timeformat_modify',
			'permission' => 'profile_extra',
			'preload' => function() use (&$context, $user_info, $txt, $cur_profile, $modSettings)
			{
				$context['easy_timeformats'] = array(
					array('format' => '', 'title' => $txt['timeformat_default']),
					array('format' => '%B %d, %Y, %I:%M:%S %p', 'title' => $txt['timeformat_easy1']),
					array('format' => '%B %d, %Y, %H:%M:%S', 'title' => $txt['timeformat_easy2']),
					array('format' => '%Y-%m-%d, %H:%M:%S', 'title' => $txt['timeformat_easy3']),
					array('format' => '%d %B %Y, %H:%M:%S', 'title' => $txt['timeformat_easy4']),
					array('format' => '%d-%m-%Y, %H:%M:%S', 'title' => $txt['timeformat_easy5'])
				);

				$context['member']['time_format'] = $cur_profile['time_format'];
				$context['current_forum_time'] = timeformat(time() - $user_info['time_offset'] * 3600, false);
				$context['current_forum_time_js'] = strftime('%Y,' . ((int) strftime('%m', time() + $modSettings['time_offset'] * 3600) - 1) . ',%d,%H,%M,%S', time() + $modSettings['time_offset'] * 3600);
				$context['current_forum_time_hour'] = (int) strftime('%H', forum_time(false));
				return true;
			},
		),
		'timezone' => array(
			'type' => 'select',
			'options' => smf_list_timezones(),
			'disabled_options' => array_filter(array_keys(smf_list_timezones()), 'is_int'),
			'permission' => 'profile_extra',
			'label' => $txt['timezone'],
			'value' => empty($cur_profile['timezone']) ? $modSettings['default_timezone'] : $cur_profile['timezone'],
			'input_validate' => function($value)
			{
				$tz = smf_list_timezones();
				if (!isset($tz[$value]))
					return 'bad_timezone';

				return true;
			},
		),
		'usertitle' => array(
			'type' => 'text',
			'label' => $txt['custom_title'],
			'log_change' => true,
			'input_attr' => array('maxlength="50"'),
			'size' => 50,
			'permission' => 'profile_title',
			'enabled' => !empty($modSettings['titlesEnable']),
			'input_validate' => function(&$value) use ($smcFunc)
			{
				if ($smcFunc['strlen']($value) > 50)
					return 'user_title_too_long';

				return true;
			},
		),
		'website_title' => array(
			'type' => 'text',
			'label' => $txt['website_title'],
			'subtext' => $txt['include_website_url'],
			'size' => 50,
			'permission' => 'profile_website',
			'link_with' => 'website',
		),
		'website_url' => array(
			'type' => 'url',
			'label' => $txt['website_url'],
			'subtext' => $txt['complete_url'],
			'size' => 50,
			'permission' => 'profile_website',
			// Fix the URL...
			'input_validate' => function(&$value)
			{
				if (strlen(trim($value)) > 0 && strpos($value, '://') === false)
					$value = 'http://' . $value;
				if (strlen($value) < 8 || (substr($value, 0, 7) !== 'http://' && substr($value, 0, 8) !== 'https://'))
					$value = '';
				$value = (string) validate_iri(sanitize_iri($value));
				return true;
			},
			'link_with' => 'website',
		),
	);

	call_integration_hook('integrate_load_profile_fields', array(&$profile_fields));

	$disabled_fields = !empty($modSettings['disabled_profile_fields']) ? explode(',', $modSettings['disabled_profile_fields']) : array();
	// For each of the above let's take out the bits which don't apply - to save memory and security!
	foreach ($profile_fields as $key => $field)
	{
		// Do we have permission to do this?
		if (isset($field['permission']) && !allowedTo(($context['user']['is_owner'] ? array($field['permission'] . '_own', $field['permission'] . '_any') : $field['permission'] . '_any')) && !allowedTo($field['permission']))
			unset($profile_fields[$key]);

		// Is it enabled?
		if (isset($field['enabled']) && !$field['enabled'])
			unset($profile_fields[$key]);

		// Is it specifically disabled?
		if (in_array($key, $disabled_fields) || (isset($field['link_with']) && in_array($field['link_with'], $disabled_fields)))
			unset($profile_fields[$key]);
	}
}

/**
 * Setup the context for a page load!
 *
 * @param array $fields The profile fields to display. Each item should correspond to an item in the $profile_fields array generated by loadProfileFields
 */
function setupProfileContext($fields)
{
	global $profile_fields, $context, $cur_profile, $txt;

	// Some default bits.
	$context['profile_prehtml'] = '';
	$context['profile_posthtml'] = '';
	$context['profile_javascript'] = '';
	$context['profile_onsubmit_javascript'] = '';

	call_integration_hook('integrate_setup_profile_context', array(&$fields));

	// Make sure we have this!
	loadProfileFields(true);

	// First check for any linked sets.
	foreach ($profile_fields as $key => $field)
		if (isset($field['link_with']) && in_array($field['link_with'], $fields))
			$fields[] = $key;

	$i = 0;
	$last_type = '';
	foreach ($fields as $key => $field)
	{
		if (isset($profile_fields[$field]))
		{
			// Shortcut.
			$cur_field = &$profile_fields[$field];

			// Does it have a preload and does that preload succeed?
			if (isset($cur_field['preload']) && !$cur_field['preload']())
				continue;

			// If this is anything but complex we need to do more cleaning!
			if ($cur_field['type'] != 'callback' && $cur_field['type'] != 'hidden')
			{
				if (!isset($cur_field['label']))
					$cur_field['label'] = isset($txt[$field]) ? $txt[$field] : $field;

				// Everything has a value!
				if (!isset($cur_field['value']))
					$cur_field['value'] = isset($cur_profile[$field]) ? $cur_profile[$field] : '';

				// Any input attributes?
				$cur_field['input_attr'] = !empty($cur_field['input_attr']) ? implode(',', $cur_field['input_attr']) : '';
			}

			// Was there an error with this field on posting?
			if (isset($context['profile_errors'][$field]))
				$cur_field['is_error'] = true;

			// Any javascript stuff?
			if (!empty($cur_field['js_submit']))
				$context['profile_onsubmit_javascript'] .= $cur_field['js_submit'];
			if (!empty($cur_field['js']))
				$context['profile_javascript'] .= $cur_field['js'];

			// Any template stuff?
			if (!empty($cur_field['prehtml']))
				$context['profile_prehtml'] .= $cur_field['prehtml'];
			if (!empty($cur_field['posthtml']))
				$context['profile_posthtml'] .= $cur_field['posthtml'];

			// Finally put it into context?
			if ($cur_field['type'] != 'hidden')
			{
				$last_type = $cur_field['type'];
				$context['profile_fields'][$field] = &$profile_fields[$field];
			}
		}
		// Bodge in a line break - without doing two in a row ;)
		elseif ($field == 'hr' && $last_type != 'hr' && $last_type != '')
		{
			$last_type = 'hr';
			$context['profile_fields'][$i++]['type'] = 'hr';
		}
	}

	// Some spicy JS.
	addInlineJavaScript('
	var form_handle = document.forms.creator;
	createEventListener(form_handle);
	' . (!empty($context['require_password']) ? '
	form_handle.addEventListener(\'submit\', function(event)
	{
		if (this.oldpasswrd.value == "")
		{
			event.preventDefault();
			alert(' . (JavaScriptEscape($txt['required_security_reasons'])) . ');
			return false;
		}
	}, false);' : ''), true);

	// Any onsubmit javascript?
	if (!empty($context['profile_onsubmit_javascript']))
		addInlineJavaScript($context['profile_onsubmit_javascript'], true);

	// Any totally custom stuff?
	if (!empty($context['profile_javascript']))
		addInlineJavaScript($context['profile_javascript'], true);

	// Free up some memory.
	unset($profile_fields);
}

/**
 * Save the profile changes.
 */
function saveProfileFields()
{
	global $profile_fields, $profile_vars, $context, $old_profile, $post_errors, $cur_profile;

	// Load them up.
	loadProfileFields();

	// This makes things easier...
	$old_profile = $cur_profile;

	// This allows variables to call activities when they save - by default just to reload their settings
	$context['profile_execute_on_save'] = array();
	if ($context['user']['is_owner'])
		$context['profile_execute_on_save']['reload_user'] = 'profileReloadUser';

	// Assume we log nothing.
	$context['log_changes'] = array();

	// Cycle through the profile fields working out what to do!
	foreach ($profile_fields as $key => $field)
	{
		if (!isset($_POST[$key]) || !empty($field['is_dummy']) || (isset($_POST['preview_signature']) && $key == 'signature'))
			continue;

		// What gets updated?
		$db_key = isset($field['save_key']) ? $field['save_key'] : $key;

		// Right - we have something that is enabled, we can act upon and has a value posted to it. Does it have a validation function?
		if (isset($field['input_validate']))
		{
			$is_valid = $field['input_validate']($_POST[$key]);
			// An error occurred - set it as such!
			if ($is_valid !== true)
			{
				// Is this an actual error?
				if ($is_valid !== false)
				{
					$post_errors[$key] = $is_valid;
					$profile_fields[$key]['is_error'] = $is_valid;
				}
				// Retain the old value.
				$cur_profile[$key] = $_POST[$key];
				continue;
			}
		}

		// Are we doing a cast?
		$field['cast_type'] = empty($field['cast_type']) ? $field['type'] : $field['cast_type'];

		// Finally, clean up certain types.
		if ($field['cast_type'] == 'int')
			$_POST[$key] = (int) $_POST[$key];
		elseif ($field['cast_type'] == 'float')
			$_POST[$key] = (float) $_POST[$key];
		elseif ($field['cast_type'] == 'check')
			$_POST[$key] = !empty($_POST[$key]) ? 1 : 0;

		// If we got here we're doing OK.
		if ($field['type'] != 'hidden' && (!isset($old_profile[$key]) || $_POST[$key] != $old_profile[$key]))
		{
			// Set the save variable.
			$profile_vars[$db_key] = $_POST[$key];
			// And update the user profile.
			$cur_profile[$key] = $_POST[$key];

			// Are we logging it?
			if (!empty($field['log_change']) && isset($old_profile[$key]))
				$context['log_changes'][$key] = array(
					'previous' => $old_profile[$key],
					'new' => $_POST[$key],
				);
		}

		// Logging group changes are a bit different...
		if ($key == 'id_group' && $field['log_change'])
		{
			profileLoadGroups();

			// Any changes to primary group?
			if ($_POST['id_group'] != $old_profile['id_group'])
			{
				$context['log_changes']['id_group'] = array(
					'previous' => !empty($old_profile[$key]) && isset($context['member_groups'][$old_profile[$key]]) ? $context['member_groups'][$old_profile[$key]]['name'] : '',
					'new' => !empty($_POST[$key]) && isset($context['member_groups'][$_POST[$key]]) ? $context['member_groups'][$_POST[$key]]['name'] : '',
				);
			}

			// Prepare additional groups for comparison.
			$additional_groups = array(
				'previous' => !empty($old_profile['additional_groups']) ? explode(',', $old_profile['additional_groups']) : array(),
				'new' => !empty($_POST['additional_groups']) ? array_diff($_POST['additional_groups'], array(0)) : array(),
			);

			sort($additional_groups['previous']);
			sort($additional_groups['new']);

			// What about additional groups?
			if ($additional_groups['previous'] != $additional_groups['new'])
			{
				foreach ($additional_groups as $type => $groups)
				{
					foreach ($groups as $id => $group)
					{
						if (isset($context['member_groups'][$group]))
							$additional_groups[$type][$id] = $context['member_groups'][$group]['name'];
						else
							unset($additional_groups[$type][$id]);
					}
					$additional_groups[$type] = implode(', ', $additional_groups[$type]);
				}

				$context['log_changes']['additional_groups'] = $additional_groups;
			}
		}
	}

	// @todo Temporary
	if ($context['user']['is_owner'])
		$changeOther = allowedTo(array('profile_extra_any', 'profile_extra_own'));
	else
		$changeOther = allowedTo('profile_extra_any');
	if ($changeOther && empty($post_errors))
	{
		makeThemeChanges($context['id_member'], isset($_POST['id_theme']) ? (int) $_POST['id_theme'] : $old_profile['id_theme']);
		if (!empty($_REQUEST['sa']))
		{
			$custom_fields_errors = makeCustomFieldChanges($context['id_member'], $_REQUEST['sa'], false, true);

			if (!empty($custom_fields_errors))
				$post_errors = array_merge($post_errors, $custom_fields_errors);
		}
	}

	// Free memory!
	unset($profile_fields);
}

/**
 * Save the profile changes
 *
 * @param array &$profile_vars The items to save
 * @param array &$post_errors An array of information about any errors that occurred
 * @param int $memID The ID of the member whose profile we're saving
 */
function saveProfileChanges(&$profile_vars, &$post_errors, $memID)
{
	global $user_profile, $context;

	// These make life easier....
	$old_profile = &$user_profile[$memID];

	// Permissions...
	if ($context['user']['is_owner'])
	{
		$changeOther = allowedTo(array('profile_extra_any', 'profile_extra_own', 'profile_website_any', 'profile_website_own', 'profile_signature_any', 'profile_signature_own'));
	}
	else
		$changeOther = allowedTo(array('profile_extra_any', 'profile_website_any', 'profile_signature_any'));

	// Arrays of all the changes - makes things easier.
	$profile_bools = array();
	$profile_ints = array();
	$profile_floats = array();
	$profile_strings = array(
		'buddy_list',
		'ignore_boards',
	);

	if (isset($_POST['sa']) && $_POST['sa'] == 'ignoreboards' && empty($_POST['ignore_brd']))
		$_POST['ignore_brd'] = array();

	unset($_POST['ignore_boards']); // Whatever it is set to is a dirty filthy thing.  Kinda like our minds.
	if (isset($_POST['ignore_brd']))
	{
		if (!is_array($_POST['ignore_brd']))
			$_POST['ignore_brd'] = array($_POST['ignore_brd']);

		foreach ($_POST['ignore_brd'] as $k => $d)
		{
			$d = (int) $d;
			if ($d != 0)
				$_POST['ignore_brd'][$k] = $d;
			else
				unset($_POST['ignore_brd'][$k]);
		}
		$_POST['ignore_boards'] = implode(',', $_POST['ignore_brd']);
		unset($_POST['ignore_brd']);
	}

	// Here's where we sort out all the 'other' values...
	if ($changeOther)
	{
		makeThemeChanges($memID, isset($_POST['id_theme']) ? (int) $_POST['id_theme'] : $old_profile['id_theme']);
		//makeAvatarChanges($memID, $post_errors);

		if (!empty($_REQUEST['sa']))
			makeCustomFieldChanges($memID, $_REQUEST['sa'], false);

		foreach ($profile_bools as $var)
			if (isset($_POST[$var]))
				$profile_vars[$var] = empty($_POST[$var]) ? '0' : '1';
		foreach ($profile_ints as $var)
			if (isset($_POST[$var]))
				$profile_vars[$var] = $_POST[$var] != '' ? (int) $_POST[$var] : '';
		foreach ($profile_floats as $var)
			if (isset($_POST[$var]))
				$profile_vars[$var] = (float) $_POST[$var];
		foreach ($profile_strings as $var)
			if (isset($_POST[$var]))
				$profile_vars[$var] = $_POST[$var];
	}
}

/**
 * Make any theme changes that are sent with the profile.
 *
 * @param int $memID The ID of the user
 * @param int $id_theme The ID of the theme
 */
function makeThemeChanges($memID, $id_theme)
{
	global $modSettings, $smcFunc, $context, $user_info;

	$reservedVars = array(
		'actual_theme_url',
		'actual_images_url',
		'base_theme_dir',
		'base_theme_url',
		'default_images_url',
		'default_theme_dir',
		'default_theme_url',
		'default_template',
		'images_url',
		'number_recent_posts',
		'smiley_sets_default',
		'theme_dir',
		'theme_id',
		'theme_layers',
		'theme_templates',
		'theme_url',
	);

	// Can't change reserved vars.
	if ((isset($_POST['options']) && count(array_intersect(array_keys($_POST['options']), $reservedVars)) != 0) || (isset($_POST['default_options']) && count(array_intersect(array_keys($_POST['default_options']), $reservedVars)) != 0))
		fatal_lang_error('no_access', false);

	// Don't allow any overriding of custom fields with default or non-default options.
	$request = $smcFunc['db_query']('', '
		SELECT col_name
		FROM {db_prefix}custom_fields
		WHERE active = {int:is_active}',
		array(
			'is_active' => 1,
		)
	);
	$custom_fields = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
		$custom_fields[] = $row['col_name'];
	$smcFunc['db_free_result']($request);

	// These are the theme changes...
	$themeSetArray = array();
	if (isset($_POST['options']) && is_array($_POST['options']))
	{
		foreach ($_POST['options'] as $opt => $val)
		{
			if (in_array($opt, $custom_fields))
				continue;

			// These need to be controlled.
			if ($opt == 'topics_per_page' || $opt == 'messages_per_page')
				$val = max(0, min($val, 50));
			// We don't set this per theme anymore.
			elseif ($opt == 'allow_no_censored')
				continue;

			$themeSetArray[] = array($memID, $id_theme, $opt, is_array($val) ? implode(',', $val) : $val);
		}
	}

	$erase_options = array();
	if (isset($_POST['default_options']) && is_array($_POST['default_options']))
		foreach ($_POST['default_options'] as $opt => $val)
		{
			if (in_array($opt, $custom_fields))
				continue;

			// These need to be controlled.
			if ($opt == 'topics_per_page' || $opt == 'messages_per_page')
				$val = max(0, min($val, 50));
			// Only let admins and owners change the censor.
			elseif ($opt == 'allow_no_censored' && !$user_info['is_admin'] && !$context['user']['is_owner'])
				continue;

			$themeSetArray[] = array($memID, 1, $opt, is_array($val) ? implode(',', $val) : $val);
			$erase_options[] = $opt;
		}

	// If themeSetArray isn't still empty, send it to the database.
	if (empty($context['password_auth_failed']))
	{
		if (!empty($themeSetArray))
		{
			$smcFunc['db_insert']('replace',
				'{db_prefix}themes',
				array('id_member' => 'int', 'id_theme' => 'int', 'variable' => 'string-255', 'value' => 'string-65534'),
				$themeSetArray,
				array('id_member', 'id_theme', 'variable')
			);
		}

		if (!empty($erase_options))
		{
			$smcFunc['db_query']('', '
				DELETE FROM {db_prefix}themes
				WHERE id_theme != {int:id_theme}
					AND variable IN ({array_string:erase_variables})
					AND id_member = {int:id_member}',
				array(
					'id_theme' => 1,
					'id_member' => $memID,
					'erase_variables' => $erase_options
				)
			);
		}

		// Admins can choose any theme, even if it's not enabled...
		$themes = allowedTo('admin_forum') ? explode(',', $modSettings['knownThemes']) : explode(',', $modSettings['enableThemes']);
		foreach ($themes as $t)
			cache_put_data('theme_settings-' . $t . ':' . $memID, null, 60);
	}
}

/**
 * Make any notification changes that need to be made.
 *
 * @param int $memID The ID of the member
 */
function makeNotificationChanges($memID)
{
	global $smcFunc, $sourcedir;

	require_once($sourcedir . '/Subs-Notify.php');

	// Update the boards they are being notified on.
	if (isset($_POST['edit_notify_boards']) && !empty($_POST['notify_boards']))
	{
		// Make sure only integers are deleted.
		foreach ($_POST['notify_boards'] as $index => $id)
			$_POST['notify_boards'][$index] = (int) $id;

		// id_board = 0 is reserved for topic notifications.
		$_POST['notify_boards'] = array_diff($_POST['notify_boards'], array(0));

		$smcFunc['db_query']('', '
			DELETE FROM {db_prefix}log_notify
			WHERE id_board IN ({array_int:board_list})
				AND id_member = {int:selected_member}',
			array(
				'board_list' => $_POST['notify_boards'],
				'selected_member' => $memID,
			)
		);
	}

	// We are editing topic notifications......
	elseif (isset($_POST['edit_notify_topics']) && !empty($_POST['notify_topics']))
	{
		foreach ($_POST['notify_topics'] as $index => $id)
			$_POST['notify_topics'][$index] = (int) $id;

		// Make sure there are no zeros left.
		$_POST['notify_topics'] = array_diff($_POST['notify_topics'], array(0));

		$smcFunc['db_query']('', '
			DELETE FROM {db_prefix}log_notify
			WHERE id_topic IN ({array_int:topic_list})
				AND id_member = {int:selected_member}',
			array(
				'topic_list' => $_POST['notify_topics'],
				'selected_member' => $memID,
			)
		);
		foreach ($_POST['notify_topics'] as $topic)
			setNotifyPrefs($memID, array('topic_notify_' . $topic => 0));
	}

	// We are removing topic preferences
	elseif (isset($_POST['remove_notify_topics']) && !empty($_POST['notify_topics']))
	{
		$prefs = array();
		foreach ($_POST['notify_topics'] as $topic)
			$prefs[] = 'topic_notify_' . $topic;
		deleteNotifyPrefs($memID, $prefs);
	}

	// We are removing board preferences
	elseif (isset($_POST['remove_notify_board']) && !empty($_POST['notify_boards']))
	{
		$prefs = array();
		foreach ($_POST['notify_boards'] as $board)
			$prefs[] = 'board_notify_' . $board;
		deleteNotifyPrefs($memID, $prefs);
	}
}

/**
 * Save any changes to the custom profile fields
 *
 * @param int $memID The ID of the member
 * @param string $area The area of the profile these fields are in
 * @param bool $sanitize = true Whether or not to sanitize the data
 * @param bool $returnErrors Whether or not to return any error information
 * @return void|array Returns nothing or returns an array of error info if $returnErrors is true
 */
function makeCustomFieldChanges($memID, $area, $sanitize = true, $returnErrors = false)
{
	global $context, $smcFunc, $user_profile, $user_info, $modSettings;
	global $sourcedir;

	$errors = array();

	if ($sanitize && isset($_POST['customfield']))
		$_POST['customfield'] = htmlspecialchars__recursive($_POST['customfield']);

	$where = $area == 'register' ? 'show_reg != 0' : 'show_profile = {string:area}';

	// Load the fields we are saving too - make sure we save valid data (etc).
	$request = $smcFunc['db_query']('', '
		SELECT col_name, field_name, field_desc, field_type, field_length, field_options, default_value, show_reg, mask, private
		FROM {db_prefix}custom_fields
		WHERE ' . $where . '
			AND active = {int:is_active}',
		array(
			'is_active' => 1,
			'area' => $area,
		)
	);
	$changes = array();
	$deletes = array();
	$log_changes = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		/* This means don't save if:
			- The user is NOT an admin.
			- The data is not freely viewable and editable by users.
			- The data is not invisible to users but editable by the owner (or if it is the user is not the owner)
			- The area isn't registration, and if it is that the field is not supposed to be shown there.
		*/
		if ($row['private'] != 0 && !allowedTo('admin_forum') && ($memID != $user_info['id'] || $row['private'] != 2) && ($area != 'register' || $row['show_reg'] == 0))
			continue;

		// Validate the user data.
		if ($row['field_type'] == 'check')
			$value = isset($_POST['customfield'][$row['col_name']]) ? 1 : 0;
		elseif ($row['field_type'] == 'select' || $row['field_type'] == 'radio')
		{
			$value = $row['default_value'];
			foreach (explode(',', $row['field_options']) as $k => $v)
				if (isset($_POST['customfield'][$row['col_name']]) && $_POST['customfield'][$row['col_name']] == $k)
					$value = $v;
		}
		// Otherwise some form of text!
		else
		{
			$value = isset($_POST['customfield'][$row['col_name']]) ? $_POST['customfield'][$row['col_name']] : '';

			if ($row['field_length'])
				$value = $smcFunc['substr']($value, 0, $row['field_length']);

			// Any masks?
			if ($row['field_type'] == 'text' && !empty($row['mask']) && $row['mask'] != 'none')
			{
				$value = $smcFunc['htmltrim']($value);
				$valueReference = un_htmlspecialchars($value);

				// Try and avoid some checks. '0' could be a valid non-empty value.
				if (empty($value) && !is_numeric($value))
					$value = '';

				if ($row['mask'] == 'nohtml' && ($valueReference != strip_tags($valueReference) || $value != filter_var($value, FILTER_SANITIZE_STRING) || preg_match('/<(.+?)[\s]*\/?[\s]*>/si', $valueReference)))
				{
					if ($returnErrors)
						$errors[] = 'custom_field_nohtml_fail';

					else
						$value = '';
				}
				elseif ($row['mask'] == 'email' && !empty($value) && (!filter_var($value, FILTER_VALIDATE_EMAIL) || strlen($value) > 255))
				{
					if ($returnErrors)
						$errors[] = 'custom_field_mail_fail';

					else
						$value = '';
				}
				elseif ($row['mask'] == 'number')
				{
					$value = (int) $value;
				}
				elseif (substr($row['mask'], 0, 5) == 'regex' && trim($value) != '' && preg_match(substr($row['mask'], 5), $value) === 0)
				{
					if ($returnErrors)
						$errors[] = 'custom_field_regex_fail';

					else
						$value = '';
				}

				unset($valueReference);
			}
		}

		if (!isset($user_profile[$memID]['options'][$row['col_name']]))
			$user_profile[$memID]['options'][$row['col_name']] = '';

		// Did it change?
		if ($user_profile[$memID]['options'][$row['col_name']] != $value)
		{
			$log_changes[] = array(
				'action' => 'customfield_' . $row['col_name'],
				'log_type' => 'user',
				'extra' => array(
					'previous' => !empty($user_profile[$memID]['options'][$row['col_name']]) ? $user_profile[$memID]['options'][$row['col_name']] : '',
					'new' => $value,
					'applicator' => $user_info['id'],
					'member_affected' => $memID,
				),
			);
			if (empty($value))
			{
				$deletes[] = array('id_theme' => 1, 'variable' => $row['col_name'], 'id_member' => $memID);
				unset($user_profile[$memID]['options'][$row['col_name']]);
			}
			else
			{
				$changes[] = array(1, $row['col_name'], $value, $memID);
				$user_profile[$memID]['options'][$row['col_name']] = $value;
			}
		}
	}
	$smcFunc['db_free_result']($request);

	$hook_errors = call_integration_hook('integrate_save_custom_profile_fields', array(&$changes, &$log_changes, &$errors, $returnErrors, $memID, $area, $sanitize, &$deletes));

	if (!empty($hook_errors) && is_array($hook_errors))
		$errors = array_merge($errors, $hook_errors);

	// Make those changes!
	if ((!empty($changes) || !empty($deletes)) && empty($context['password_auth_failed']) && empty($errors))
	{
		if (!empty($changes))
			$smcFunc['db_insert']('replace',
				'{db_prefix}themes',
				array('id_theme' => 'int', 'variable' => 'string-255', 'value' => 'string-65534', 'id_member' => 'int'),
				$changes,
				array('id_theme', 'variable', 'id_member')
			);
		if (!empty($deletes))
			foreach ($deletes as $delete)
				$smcFunc['db_query']('', '
					DELETE FROM {db_prefix}themes
					WHERE id_theme = {int:id_theme}
						AND variable = {string:variable}
						AND id_member = {int:id_member}',
					$delete
				);
		if (!empty($log_changes) && !empty($modSettings['modlog_enabled']))
		{
			require_once($sourcedir . '/Logging.php');
			logActions($log_changes);
		}
	}

	if ($returnErrors)
		return $errors;
}

/**
 * Show all the users buddies, as well as a add/delete interface.
 *
 * @param int $memID The ID of the member
 */
function editBuddyIgnoreLists($memID)
{
	global $context, $txt, $modSettings;

	// Do a quick check to ensure people aren't getting here illegally!
	if (!$context['user']['is_owner'] || empty($modSettings['enable_buddylist']))
		fatal_lang_error('no_access', false);

	// Can we email the user direct?
	$context['can_moderate_forum'] = allowedTo('moderate_forum');
	$context['can_send_email'] = allowedTo('moderate_forum');

	$subActions = array(
		'buddies' => array('editBuddies', $txt['editBuddies']),
		'ignore' => array('editIgnoreList', $txt['editIgnoreList']),
	);

	$context['list_area'] = isset($_GET['sa']) && isset($subActions[$_GET['sa']]) ? $_GET['sa'] : 'buddies';

	// Create the tabs for the template.
	$context[$context['profile_menu_name']]['tab_data'] = array(
		'title' => $txt['editBuddyIgnoreLists'],
		'description' => $txt['buddy_ignore_desc'],
		'icon' => 'profile_hd.png',
		'tabs' => array(
			'buddies' => array(),
			'ignore' => array(),
		),
	);

	loadJavaScriptFile('suggest.js', array('defer' => false, 'minimize' => true), 'smf_suggest');

	// Pass on to the actual function.
	$context['sub_template'] = $subActions[$context['list_area']][0];
	$call = call_helper($subActions[$context['list_area']][0], true);

	if (!empty($call))
		call_user_func($call, $memID);
}

/**
 * Show all the users buddies, as well as a add/delete interface.
 *
 * @param int $memID The ID of the member
 */
function editBuddies($memID)
{
	global $txt, $scripturl, $settings, $modSettings;
	global $context, $user_profile, $memberContext, $smcFunc;

	// For making changes!
	$buddiesArray = explode(',', $user_profile[$memID]['buddy_list']);
	foreach ($buddiesArray as $k => $dummy)
		if ($dummy == '')
			unset($buddiesArray[$k]);

	// Removing a buddy?
	if (isset($_GET['remove']))
	{
		checkSession('get');

		call_integration_hook('integrate_remove_buddy', array($memID));

		$_SESSION['prf-save'] = $txt['could_not_remove_person'];

		// Heh, I'm lazy, do it the easy way...
		foreach ($buddiesArray as $key => $buddy)
			if ($buddy == (int) $_GET['remove'])
			{
				unset($buddiesArray[$key]);
				$_SESSION['prf-save'] = true;
			}

		// Make the changes.
		$user_profile[$memID]['buddy_list'] = implode(',', $buddiesArray);
		updateMemberData($memID, array('buddy_list' => $user_profile[$memID]['buddy_list']));

		// Redirect off the page because we don't like all this ugly query stuff to stick in the history.
		redirectexit('action=profile;area=lists;sa=buddies;u=' . $memID);
	}
	elseif (isset($_POST['new_buddy']))
	{
		checkSession();

		// Prepare the string for extraction...
		$_POST['new_buddy'] = strtr($smcFunc['htmlspecialchars']($_POST['new_buddy'], ENT_QUOTES), array('&quot;' => '"'));
		preg_match_all('~"([^"]+)"~', $_POST['new_buddy'], $matches);
		$new_buddies = array_unique(array_merge($matches[1], explode(',', preg_replace('~"[^"]+"~', '', $_POST['new_buddy']))));

		foreach ($new_buddies as $k => $dummy)
		{
			$new_buddies[$k] = strtr(trim($new_buddies[$k]), array('\'' => '&#039;'));

			if (strlen($new_buddies[$k]) == 0 || in_array($new_buddies[$k], array($user_profile[$memID]['member_name'], $user_profile[$memID]['real_name'])))
				unset($new_buddies[$k]);
		}

		call_integration_hook('integrate_add_buddies', array($memID, &$new_buddies));

		$_SESSION['prf-save'] = $txt['could_not_add_person'];
		if (!empty($new_buddies))
		{
			// Now find out the id_member of the buddy.
			$request = $smcFunc['db_query']('', '
				SELECT id_member
				FROM {db_prefix}members
				WHERE member_name IN ({array_string:new_buddies}) OR real_name IN ({array_string:new_buddies})
				LIMIT {int:count_new_buddies}',
				array(
					'new_buddies' => $new_buddies,
					'count_new_buddies' => count($new_buddies),
				)
			);

			if ($smcFunc['db_num_rows']($request) != 0)
				$_SESSION['prf-save'] = true;

			// Add the new member to the buddies array.
			while ($row = $smcFunc['db_fetch_assoc']($request))
			{
				if (in_array($row['id_member'], $buddiesArray))
					continue;
				else
					$buddiesArray[] = (int) $row['id_member'];
			}
			$smcFunc['db_free_result']($request);

			// Now update the current users buddy list.
			$user_profile[$memID]['buddy_list'] = implode(',', $buddiesArray);
			updateMemberData($memID, array('buddy_list' => $user_profile[$memID]['buddy_list']));
		}

		// Back to the buddy list!
		redirectexit('action=profile;area=lists;sa=buddies;u=' . $memID);
	}

	// Get all the users "buddies"...
	$buddies = array();

	// Gotta load the custom profile fields names.
	$request = $smcFunc['db_query']('', '
		SELECT col_name, field_name, field_desc, field_type, bbc, enclose
		FROM {db_prefix}custom_fields
		WHERE active = {int:active}
			AND private < {int:private_level}',
		array(
			'active' => 1,
			'private_level' => 2,
		)
	);

	$context['custom_pf'] = array();
	$disabled_fields = isset($modSettings['disabled_profile_fields']) ? array_flip(explode(',', $modSettings['disabled_profile_fields'])) : array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
		if (!isset($disabled_fields[$row['col_name']]))
			$context['custom_pf'][$row['col_name']] = array(
				'label' => $row['field_name'],
				'type' => $row['field_type'],
				'bbc' => !empty($row['bbc']),
				'enclose' => $row['enclose'],
			);

	// Gotta disable the gender option.
	if (isset($context['custom_pf']['cust_gender']) && $context['custom_pf']['cust_gender'] == 'None')
		unset($context['custom_pf']['cust_gender']);

	$smcFunc['db_free_result']($request);

	if (!empty($buddiesArray))
	{
		$result = $smcFunc['db_query']('', '
			SELECT id_member
			FROM {db_prefix}members
			WHERE id_member IN ({array_int:buddy_list})
			ORDER BY real_name
			LIMIT {int:buddy_list_count}',
			array(
				'buddy_list' => $buddiesArray,
				'buddy_list_count' => substr_count($user_profile[$memID]['buddy_list'], ',') + 1,
			)
		);
		while ($row = $smcFunc['db_fetch_assoc']($result))
			$buddies[] = $row['id_member'];
		$smcFunc['db_free_result']($result);
	}

	$context['buddy_count'] = count($buddies);

	// Load all the members up.
	loadMemberData($buddies, false, 'profile');

	// Setup the context for each buddy.
	$context['buddies'] = array();
	foreach ($buddies as $buddy)
	{
		loadMemberContext($buddy);
		$context['buddies'][$buddy] = $memberContext[$buddy];

		// Make sure to load the appropriate fields for each user
		if (!empty($context['custom_pf']))
		{
			foreach ($context['custom_pf'] as $key => $column)
			{
				// Don't show anything if there isn't anything to show.
				if (!isset($context['buddies'][$buddy]['options'][$key]))
				{
					$context['buddies'][$buddy]['options'][$key] = '';
					continue;
				}

				if ($column['bbc'] && !empty($context['buddies'][$buddy]['options'][$key]))
					$context['buddies'][$buddy]['options'][$key] = strip_tags(parse_bbc($context['buddies'][$buddy]['options'][$key]));

				elseif ($column['type'] == 'check')
					$context['buddies'][$buddy]['options'][$key] = $context['buddies'][$buddy]['options'][$key] == 0 ? $txt['no'] : $txt['yes'];

				// Enclosing the user input within some other text?
				if (!empty($column['enclose']) && !empty($context['buddies'][$buddy]['options'][$key]))
					$context['buddies'][$buddy]['options'][$key] = strtr($column['enclose'], array(
						'{SCRIPTURL}' => $scripturl,
						'{IMAGES_URL}' => $settings['images_url'],
						'{DEFAULT_IMAGES_URL}' => $settings['default_images_url'],
						'{INPUT}' => $context['buddies'][$buddy]['options'][$key],
					));
			}
		}
	}

	if (isset($_SESSION['prf-save']))
	{
		if ($_SESSION['prf-save'] === true)
			$context['saved_successful'] = true;
		else
			$context['saved_failed'] = $_SESSION['prf-save'];

		unset($_SESSION['prf-save']);
	}

	call_integration_hook('integrate_view_buddies', array($memID));
}

/**
 * Allows the user to view their ignore list, as well as the option to manage members on it.
 *
 * @param int $memID The ID of the member
 */
function editIgnoreList($memID)
{
	global $txt;
	global $context, $user_profile, $memberContext, $smcFunc;

	// For making changes!
	$ignoreArray = explode(',', $user_profile[$memID]['pm_ignore_list']);
	foreach ($ignoreArray as $k => $dummy)
		if ($dummy == '')
			unset($ignoreArray[$k]);

	// Removing a member from the ignore list?
	if (isset($_GET['remove']))
	{
		checkSession('get');

		$_SESSION['prf-save'] = $txt['could_not_remove_person'];

		// Heh, I'm lazy, do it the easy way...
		foreach ($ignoreArray as $key => $id_remove)
			if ($id_remove == (int) $_GET['remove'])
			{
				unset($ignoreArray[$key]);
				$_SESSION['prf-save'] = true;
			}

		// Make the changes.
		$user_profile[$memID]['pm_ignore_list'] = implode(',', $ignoreArray);
		updateMemberData($memID, array('pm_ignore_list' => $user_profile[$memID]['pm_ignore_list']));

		// Redirect off the page because we don't like all this ugly query stuff to stick in the history.
		redirectexit('action=profile;area=lists;sa=ignore;u=' . $memID);
	}
	elseif (isset($_POST['new_ignore']))
	{
		checkSession();
		// Prepare the string for extraction...
		$_POST['new_ignore'] = strtr($smcFunc['htmlspecialchars']($_POST['new_ignore'], ENT_QUOTES), array('&quot;' => '"'));
		preg_match_all('~"([^"]+)"~', $_POST['new_ignore'], $matches);
		$new_entries = array_unique(array_merge($matches[1], explode(',', preg_replace('~"[^"]+"~', '', $_POST['new_ignore']))));

		foreach ($new_entries as $k => $dummy)
		{
			$new_entries[$k] = strtr(trim($new_entries[$k]), array('\'' => '&#039;'));

			if (strlen($new_entries[$k]) == 0 || in_array($new_entries[$k], array($user_profile[$memID]['member_name'], $user_profile[$memID]['real_name'])))
				unset($new_entries[$k]);
		}

		$_SESSION['prf-save'] = $txt['could_not_add_person'];
		if (!empty($new_entries))
		{
			// Now find out the id_member for the members in question.
			$request = $smcFunc['db_query']('', '
				SELECT id_member
				FROM {db_prefix}members
				WHERE member_name IN ({array_string:new_entries}) OR real_name IN ({array_string:new_entries})
				LIMIT {int:count_new_entries}',
				array(
					'new_entries' => $new_entries,
					'count_new_entries' => count($new_entries),
				)
			);

			if ($smcFunc['db_num_rows']($request) != 0)
				$_SESSION['prf-save'] = true;

			// Add the new member to the buddies array.
			while ($row = $smcFunc['db_fetch_assoc']($request))
			{
				if (in_array($row['id_member'], $ignoreArray))
					continue;
				else
					$ignoreArray[] = (int) $row['id_member'];
			}
			$smcFunc['db_free_result']($request);

			// Now update the current users buddy list.
			$user_profile[$memID]['pm_ignore_list'] = implode(',', $ignoreArray);
			updateMemberData($memID, array('pm_ignore_list' => $user_profile[$memID]['pm_ignore_list']));
		}

		// Back to the list of pityful people!
		redirectexit('action=profile;area=lists;sa=ignore;u=' . $memID);
	}

	// Initialise the list of members we're ignoring.
	$ignored = array();

	if (!empty($ignoreArray))
	{
		$result = $smcFunc['db_query']('', '
			SELECT id_member
			FROM {db_prefix}members
			WHERE id_member IN ({array_int:ignore_list})
			ORDER BY real_name
			LIMIT {int:ignore_list_count}',
			array(
				'ignore_list' => $ignoreArray,
				'ignore_list_count' => substr_count($user_profile[$memID]['pm_ignore_list'], ',') + 1,
			)
		);
		while ($row = $smcFunc['db_fetch_assoc']($result))
			$ignored[] = $row['id_member'];
		$smcFunc['db_free_result']($result);
	}

	$context['ignore_count'] = count($ignored);

	// Load all the members up.
	loadMemberData($ignored, false, 'profile');

	// Setup the context for each buddy.
	$context['ignore_list'] = array();
	foreach ($ignored as $ignore_member)
	{
		loadMemberContext($ignore_member);
		$context['ignore_list'][$ignore_member] = $memberContext[$ignore_member];
	}

	if (isset($_SESSION['prf-save']))
	{
		if ($_SESSION['prf-save'] === true)
			$context['saved_successful'] = true;
		else
			$context['saved_failed'] = $_SESSION['prf-save'];

		unset($_SESSION['prf-save']);
	}
}

/**
 * Handles the account section of the profile
 *
 * @param int $memID The ID of the member
 */
function account($memID)
{
	global $context, $txt;

	loadThemeOptions($memID);
	if (allowedTo(array('profile_identity_own', 'profile_identity_any', 'profile_password_own', 'profile_password_any')))
		loadCustomFields($memID, 'account');

	$context['sub_template'] = 'edit_options';
	$context['page_desc'] = $txt['account_info'];

	setupProfileContext(
		array(
			'member_name', 'real_name', 'date_registered', 'posts', 'lngfile', 'hr',
			'id_group', 'hr',
			'email_address', 'show_online', 'hr',
			'tfa', 'hr',
			'passwrd1', 'passwrd2', 'hr',
			'secret_question', 'secret_answer',
		)
	);
}

/**
 * Handles the main "Forum Profile" section of the profile
 *
 * @param int $memID The ID of the member
 */
function forumProfile($memID)
{
	global $context, $txt;

	loadThemeOptions($memID);
	if (allowedTo(array('profile_forum_own', 'profile_forum_any')))
		loadCustomFields($memID, 'forumprofile');

	$context['sub_template'] = 'edit_options';
	$context['page_desc'] = $txt['forumProfile_info'];
	$context['show_preview_button'] = true;

	setupProfileContext(
		array(
			'avatar_choice', 'hr', 'personal_text', 'hr',
			'bday1', 'usertitle', 'signature', 'hr',
			'website_title', 'website_url',
		)
	);
}

/**
 * Recursive function to retrieve server-stored avatar files
 *
 * @param string $directory The directory to look for files in
 * @param int $level How many levels we should go in the directory
 * @return array An array of information about the files and directories found
 */
function getAvatars($directory, $level)
{
	global $context, $txt, $modSettings, $smcFunc;

	$result = array();

	// Open the directory..
	$dir = dir($modSettings['avatar_directory'] . (!empty($directory) ? '/' : '') . $directory);
	$dirs = array();
	$files = array();

	if (!$dir)
		return array();

	while ($line = $dir->read())
	{
		if (in_array($line, array('.', '..', 'blank.png', 'index.php')))
			continue;

		if (is_dir($modSettings['avatar_directory'] . '/' . $directory . (!empty($directory) ? '/' : '') . $line))
			$dirs[] = $line;
		else
			$files[] = $line;
	}
	$dir->close();

	// Sort the results...
	natcasesort($dirs);
	natcasesort($files);

	if ($level == 0)
	{
		$result[] = array(
			'filename' => 'blank.png',
			'checked' => in_array($context['member']['avatar']['server_pic'], array('', 'blank.png')),
			'name' => $txt['no_pic'],
			'is_dir' => false
		);
	}

	foreach ($dirs as $line)
	{
		$tmp = getAvatars($directory . (!empty($directory) ? '/' : '') . $line, $level + 1);
		if (!empty($tmp))
			$result[] = array(
				'filename' => $smcFunc['htmlspecialchars']($line),
				'checked' => strpos($context['member']['avatar']['server_pic'], $line . '/') !== false,
				'name' => '[' . $smcFunc['htmlspecialchars'](str_replace('_', ' ', $line)) . ']',
				'is_dir' => true,
				'files' => $tmp
			);
		unset($tmp);
	}

	foreach ($files as $line)
	{
		$filename = substr($line, 0, (strlen($line) - strlen(strrchr($line, '.'))));
		$extension = substr(strrchr($line, '.'), 1);

		// Make sure it is an image.
		if (strcasecmp($extension, 'gif') != 0 && strcasecmp($extension, 'jpg') != 0 && strcasecmp($extension, 'jpeg') != 0 && strcasecmp($extension, 'png') != 0 && strcasecmp($extension, 'bmp') != 0)
			continue;

		$result[] = array(
			'filename' => $smcFunc['htmlspecialchars']($line),
			'checked' => $line == $context['member']['avatar']['server_pic'],
			'name' => $smcFunc['htmlspecialchars'](str_replace('_', ' ', $filename)),
			'is_dir' => false
		);
		if ($level == 1)
			$context['avatar_list'][] = $directory . '/' . $line;
	}

	return $result;
}

/**
 * Handles the "Look and Layout" section of the profile
 *
 * @param int $memID The ID of the member
 */
function theme($memID)
{
	global $txt, $context;

	loadTemplate('Settings');
	loadSubTemplate('options');

	// Let mods hook into the theme options.
	call_integration_hook('integrate_theme_options');

	loadThemeOptions($memID);
	if (allowedTo(array('profile_extra_own', 'profile_extra_any')))
		loadCustomFields($memID, 'theme');

	$context['sub_template'] = 'edit_options';
	$context['page_desc'] = $txt['theme_info'];

	setupProfileContext(
		array(
			'id_theme', 'smiley_set', 'hr',
			'time_format', 'timezone', 'hr',
			'theme_settings',
		)
	);
}

/**
 * Display the notifications and settings for changes.
 *
 * @param int $memID The ID of the member
 */
function notification($memID)
{
	global $txt, $context;

	// Going to want this for consistency.
	loadCSSFile('admin.css', array(), 'smf_admin');

	// This is just a bootstrap for everything else.
	$sa = array(
		'alerts' => 'alert_configuration',
		'markread' => 'alert_markread',
		'topics' => 'alert_notifications_topics',
		'boards' => 'alert_notifications_boards',
	);

	$subAction = !empty($_GET['sa']) && isset($sa[$_GET['sa']]) ? $_GET['sa'] : 'alerts';

	$context['sub_template'] = $sa[$subAction];
	$context[$context['profile_menu_name']]['tab_data'] = array(
		'title' => $txt['notification'],
		'help' => '',
		'description' => $txt['notification_info'],
	);
	$sa[$subAction]($memID);
}

/**
 * Handles configuration of alert preferences
 *
 * @param int $memID The ID of the member
 * @param bool $defaultSettings If true, we are loading default options.
 */
function alert_configuration($memID, $defaultSettings = false)
{
	global $txt, $context, $modSettings, $smcFunc, $sourcedir;

	if (!isset($context['token_check']))
		$context['token_check'] = 'profile-nt' . $memID;

	is_not_guest();
	if (!$context['user']['is_owner'])
		isAllowedTo('profile_extra_any');

	// Set the post action if we're coming from the profile...
	if (!isset($context['action']))
		$context['action'] = 'action=profile;area=notification;sa=alerts;u=' . $memID;

	// What options are set
	loadThemeOptions($memID, $defaultSettings);
	loadJavaScriptFile('alertSettings.js', array('minimize' => true), 'smf_alertSettings');

	// Now load all the values for this user.
	require_once($sourcedir . '/Subs-Notify.php');
	$prefs = getNotifyPrefs($memID, '', $memID != 0);

	$context['alert_prefs'] = !empty($prefs[$memID]) ? $prefs[$memID] : array();

	$context['member'] += array(
		'alert_timeout' => isset($context['alert_prefs']['alert_timeout']) ? $context['alert_prefs']['alert_timeout'] : 10,
		'notify_announcements' => isset($context['alert_prefs']['announcements']) ? $context['alert_prefs']['announcements'] : 0,
	);

	// Now for the exciting stuff.
	// We have groups of items, each item has both an alert and an email key as well as an optional help string.
	// Valid values for these keys are 'always', 'yes', 'never'; if using always or never you should add a help string.
	$alert_types = array(
		'board' => array(
			'topic_notify' => array('alert' => 'yes', 'email' => 'yes'),
			'board_notify' => array('alert' => 'yes', 'email' => 'yes'),
		),
		'msg' => array(
			'msg_mention' => array('alert' => 'yes', 'email' => 'yes'),
			'msg_quote' => array('alert' => 'yes', 'email' => 'yes'),
			'msg_like' => array('alert' => 'yes', 'email' => 'never'),
			'unapproved_reply' => array('alert' => 'yes', 'email' => 'yes'),
		),
		'pm' => array(
			'pm_new' => array('alert' => 'never', 'email' => 'yes', 'help' => 'alert_pm_new', 'permission' => array('name' => 'pm_read', 'is_board' => false)),
			'pm_reply' => array('alert' => 'never', 'email' => 'yes', 'help' => 'alert_pm_new', 'permission' => array('name' => 'pm_send', 'is_board' => false)),
		),
		'groupr' => array(
			'groupr_approved' => array('alert' => 'yes', 'email' => 'yes'),
			'groupr_rejected' => array('alert' => 'yes', 'email' => 'yes'),
		),
		'moderation' => array(
			'unapproved_attachment' => array('alert' => 'yes', 'email' => 'yes', 'permission' => array('name' => 'approve_posts', 'is_board' => true)),
			'unapproved_post' => array('alert' => 'yes', 'email' => 'yes', 'permission' => array('name' => 'approve_posts', 'is_board' => true)),
			'msg_report' => array('alert' => 'yes', 'email' => 'yes', 'permission' => array('name' => 'moderate_board', 'is_board' => true)),
			'msg_report_reply' => array('alert' => 'yes', 'email' => 'yes', 'permission' => array('name' => 'moderate_board', 'is_board' => true)),
			'member_report' => array('alert' => 'yes', 'email' => 'yes', 'permission' => array('name' => 'moderate_forum', 'is_board' => false)),
			'member_report_reply' => array('alert' => 'yes', 'email' => 'yes', 'permission' => array('name' => 'moderate_forum', 'is_board' => false)),
		),
		'members' => array(
			'member_register' => array('alert' => 'yes', 'email' => 'yes', 'permission' => array('name' => 'moderate_forum', 'is_board' => false)),
			'request_group' => array('alert' => 'yes', 'email' => 'yes'),
			'warn_any' => array('alert' => 'yes', 'email' => 'yes', 'permission' => array('name' => 'issue_warning', 'is_board' => false)),
			'buddy_request' => array('alert' => 'yes', 'email' => 'never'),
			'birthday' => array('alert' => 'yes', 'email' => 'yes'),
		),
		'calendar' => array(
			'event_new' => array('alert' => 'yes', 'email' => 'yes', 'help' => 'alert_event_new'),
		),
		'paidsubs' => array(
			'paidsubs_expiring' => array('alert' => 'yes', 'email' => 'yes'),
		),
	);
	$group_options = array(
		'board' => array(
			array('check', 'msg_auto_notify', 'label' => 'after'),
			array('check', 'msg_receive_body', 'label' => 'after'),
			array('select', 'msg_notify_pref', 'label' => 'before', 'opts' => array(
				0 => $txt['alert_opt_msg_notify_pref_never'],
				1 => $txt['alert_opt_msg_notify_pref_instant'],
				2 => $txt['alert_opt_msg_notify_pref_first'],
				3 => $txt['alert_opt_msg_notify_pref_daily'],
				4 => $txt['alert_opt_msg_notify_pref_weekly'],
			)),
			array('select', 'msg_notify_type', 'label' => 'before', 'opts' => array(
				1 => $txt['notify_send_type_everything'],
				2 => $txt['notify_send_type_everything_own'],
				3 => $txt['notify_send_type_only_replies'],
				4 => $txt['notify_send_type_nothing'],
			)),
		),
		'pm' => array(
			array('select', 'pm_notify', 'label' => 'before', 'opts' => array(
				1 => $txt['email_notify_all'],
				2 => $txt['email_notify_buddies'],
			)),
		),
	);

	// There are certain things that are disabled at the group level.
	if (empty($modSettings['cal_enabled']))
		unset($alert_types['calendar']);

	// Disable paid subscriptions at group level if they're disabled
	if (empty($modSettings['paid_enabled']))
		unset($alert_types['paidsubs']);

	// Disable membergroup requests at group level if they're disabled
	if (empty($modSettings['show_group_membership']))
		unset($alert_types['groupr'], $alert_types['members']['request_group']);

	// Disable mentions if they're disabled
	if (empty($modSettings['enable_mentions']))
		unset($alert_types['msg']['msg_mention']);

	// Disable likes if they're disabled
	if (empty($modSettings['enable_likes']))
		unset($alert_types['msg']['msg_like']);

	// Disable buddy requests if they're disabled
	if (empty($modSettings['enable_buddylist']))
		unset($alert_types['members']['buddy_request']);

	// Now, now, we could pass this through global but we should really get into the habit of
	// passing content to hooks, not expecting hooks to splatter everything everywhere.
	call_integration_hook('integrate_alert_types', array(&$alert_types, &$group_options));

	// Now we have to do some permissions testing - but only if we're not loading this from the admin center
	if (!empty($memID))
	{
		require_once($sourcedir . '/Subs-Members.php');
		$perms_cache = array();
		$request = $smcFunc['db_query']('', '
			SELECT COUNT(*)
			FROM {db_prefix}group_moderators
			WHERE id_member = {int:memID}',
			array(
				'memID' => $memID,
			)
		);

		list ($can_mod) = $smcFunc['db_fetch_row']($request);

		if (!isset($perms_cache['manage_membergroups']))
		{
			$members = membersAllowedTo('manage_membergroups');
			$perms_cache['manage_membergroups'] = in_array($memID, $members);
		}

		if (!($perms_cache['manage_membergroups'] || $can_mod != 0))
			unset($alert_types['members']['request_group']);

		foreach ($alert_types as $group => $items)
		{
			foreach ($items as $alert_key => $alert_value)
			{
				if (!isset($alert_value['permission']))
					continue;
				if (!isset($perms_cache[$alert_value['permission']['name']]))
				{
					$in_board = !empty($alert_value['permission']['is_board']) ? 0 : null;
					$members = membersAllowedTo($alert_value['permission']['name'], $in_board);
					$perms_cache[$alert_value['permission']['name']] = in_array($memID, $members);
				}

				if (!$perms_cache[$alert_value['permission']['name']])
					unset ($alert_types[$group][$alert_key]);
			}

			if (empty($alert_types[$group]))
				unset ($alert_types[$group]);
		}
	}

	// And finally, exporting it to be useful later.
	$context['alert_types'] = $alert_types;
	$context['alert_group_options'] = $group_options;

	$context['alert_bits'] = array(
		'alert' => 0x01,
		'email' => 0x02,
	);

	if (isset($_POST['notify_submit']))
	{
		checkSession();
		validateToken($context['token_check'], 'post');

		// We need to step through the list of valid settings and figure out what the user has set.
		$update_prefs = array();

		// Now the group level options
		foreach ($context['alert_group_options'] as $opt_group => $group)
		{
			foreach ($group as $this_option)
			{
				switch ($this_option[0])
				{
					case 'check':
						$update_prefs[$this_option[1]] = !empty($_POST['opt_' . $this_option[1]]) ? 1 : 0;
						break;
					case 'select':
						if (isset($_POST['opt_' . $this_option[1]], $this_option['opts'][$_POST['opt_' . $this_option[1]]]))
							$update_prefs[$this_option[1]] = $_POST['opt_' . $this_option[1]];
						else
						{
							// We didn't have a sane value. Let's grab the first item from the possibles.
							$keys = array_keys($this_option['opts']);
							$first = array_shift($keys);
							$update_prefs[$this_option[1]] = $first;
						}
						break;
				}
			}
		}

		// Now the individual options
		foreach ($context['alert_types'] as $alert_group => $items)
		{
			foreach ($items as $item_key => $this_options)
			{
				$this_value = 0;
				foreach ($context['alert_bits'] as $type => $bitvalue)
				{
					if ($this_options[$type] == 'yes' && !empty($_POST[$type . '_' . $item_key]) || $this_options[$type] == 'always')
						$this_value |= $bitvalue;
				}

				$update_prefs[$item_key] = $this_value;
			}
		}

		if (isset($_POST['opt_alert_timeout']))
			$update_prefs['alert_timeout'] = $context['member']['alert_timeout'] = (int) $_POST['opt_alert_timeout'];
		else
			$update_prefs['alert_timeout'] = $context['alert_prefs']['alert_timeout'];

		if (isset($_POST['notify_announcements']))
			$update_prefs['announcements'] = $context['member']['notify_announcements'] = (int) $_POST['notify_announcements'];
		else
			$update_prefs['announcements'] = $context['alert_prefs']['announcements'];

		setNotifyPrefs((int) $memID, $update_prefs);
		foreach ($update_prefs as $pref => $value)
			$context['alert_prefs'][$pref] = $value;

		makeNotificationChanges($memID);

		$context['profile_updated'] = $txt['profile_updated_own'];
	}

	createToken($context['token_check'], 'post');
}

/**
 * Marks all alerts as read for the specified user
 *
 * @param int $memID The ID of the member
 */
function alert_markread($memID)
{
	global $context, $db_show_debug, $smcFunc;

	// We do not want to output debug information here.
	$db_show_debug = false;

	// We only want to output our little layer here.
	$context['template_layers'] = array();
	$context['sub_template'] = 'alerts_all_read';

	loadLanguage('Alerts');

	// Now we're all set up.
	is_not_guest();
	if (!$context['user']['is_owner'])
		fatal_error('no_access');

	checkSession('get');

	// Assuming we're here, mark everything as read and head back.
	// We only spit back the little layer because this should be called AJAXively.
	$smcFunc['db_query']('', '
		UPDATE {db_prefix}user_alerts
		SET is_read = {int:now}
		WHERE id_member = {int:current_member}
			AND is_read = 0',
		array(
			'now' => time(),
			'current_member' => $memID,
		)
	);

	updateMemberData($memID, array('alerts' => 0));
}

/**
 * Marks a group of alerts as un/read
 *
 * @param int $memID The user ID.
 * @param array|integer $toMark The ID of a single alert or an array of IDs. The function will convert single integers to arrays for better handling.
 * @param integer $read To mark as read or unread, 1 for read, 0 or any other value different than 1 for unread.
 * @return integer How many alerts remain unread
 */
function alert_mark($memID, $toMark, $read = 0)
{
	global $smcFunc;

	if (empty($toMark) || empty($memID))
		return false;

	$toMark = (array) $toMark;

	$smcFunc['db_query']('', '
		UPDATE {db_prefix}user_alerts
		SET is_read = {int:read}
		WHERE id_alert IN({array_int:toMark})',
		array(
			'read' => $read == 1 ? time() : 0,
			'toMark' => $toMark,
		)
	);

	// Gotta know how many unread alerts are left.
	$count = alert_count($memID, true);

	updateMemberData($memID, array('alerts' => $count));

	// Might want to know this.
	return $count;
}

/**
 * Deletes a single or a group of alerts by ID
 *
 * @param int|array The ID of a single alert to delete or an array containing the IDs of multiple alerts. The function will convert integers into an array for better handling.

The type The was not found. Maybe you did not declare it correctly or list all dependencies?

 * @param bool|int $memID The user ID. Used to update the user unread alerts count.
 * @return void|int If the $memID param is set, returns the new amount of unread alerts.
 */
function alert_delete($toDelete, $memID = false)
{
	global $smcFunc;

	if (empty($toDelete))
		return false;

	$toDelete = (array) $toDelete;

	$smcFunc['db_query']('', '
		DELETE FROM {db_prefix}user_alerts
		WHERE id_alert IN({array_int:toDelete})',
		array(
			'toDelete' => $toDelete,
		)
	);

	// Gotta know how many unread alerts are left.
	if ($memID)
	{
		$count = alert_count($memID, true);

		updateMemberData($memID, array('alerts' => $count));

		// Might want to know this.
		return $count;
	}
}

/**
 * Deletes all the alerts that a user has already read.
 *
 * @param int $memID The user ID. Defaults to the current user's ID.
 */
function alert_purge($memID = 0)
{
	global $smcFunc, $user_info;

	$memID = !empty($memID) && is_int($memID) ? $memID : $user_info['id'];

	$smcFunc['db_query']('', '
		DELETE FROM {db_prefix}user_alerts
		WHERE id_member = {int:memID}
			AND is_read > 0',
		array(
			'memID' => $memID,
		)
	);
}

/**
 * Counts how many alerts a user has - either unread or all depending on $unread
 * We can't use db_num_rows here, as we have to determine what boards the user can see
 * Possibly in future versions as database support for json is mainstream, we can simplify this.
 *
 * @param int $memID The user ID.
 * @param bool $unread Whether to only count unread alerts.
 * @return int The number of requested alerts
 */
function alert_count($memID, $unread = false)
{
	global $smcFunc, $user_info;

	if (empty($memID))
		return false;

	$alerts = array();
	$possible_topics = array();
	$possible_msgs = array();
	$possible_attachments = array();

	// We have to do this the slow way as to iterate over all possible boards the user can see.
	$request = $smcFunc['db_query']('', '
		SELECT id_alert, content_id, content_type, content_action
		FROM {db_prefix}user_alerts
		WHERE id_member = {int:id_member}
			' . ($unread ? '
			AND is_read = 0' : ''),
		array(
			'id_member' => $memID,
		)
	);
	// First we dump alerts and possible boards information out.
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		$alerts[$row['id_alert']] = $row;

		// For these types, we need to check whether they can actually see the content.
		if ($row['content_type'] == 'msg')
		{
			$alerts[$row['id_alert']]['visible'] = false;
			$possible_msgs[$row['id_alert']] = $row['content_id'];
		}
		elseif (in_array($row['content_type'], array('topic', 'board')))
		{
			$alerts[$row['id_alert']]['visible'] = false;
			$possible_topics[$row['id_alert']] = $row['content_id'];
		}
		// For the rest, they can always see it.
		else
			$alerts[$row['id_alert']]['visible'] = true;
	}
	$smcFunc['db_free_result']($request);

	// If we need to check board access, use the correct board access filter for the member in question.
	if ((!isset($user_info['query_see_board']) || $user_info['id'] != $memID) && (!empty($possible_msgs) || !empty($possible_topics)))
		$qb = build_query_board($memID);
	else
	{
		$qb['query_see_topic_board'] = '{query_see_topic_board}';
		$qb['query_see_message_board'] = '{query_see_message_board}';
	}

	// We want only the stuff they can see.
	if (!empty($possible_msgs))
	{
		$flipped_msgs = array();
		foreach ($possible_msgs as $id_alert => $id_msg)
		{
			if (!isset($flipped_msgs[$id_msg]))
				$flipped_msgs[$id_msg] = array();

			$flipped_msgs[$id_msg][] = $id_alert;
		}

		$request = $smcFunc['db_query']('', '
			SELECT m.id_msg
			FROM {db_prefix}messages AS m
			WHERE ' . $qb['query_see_message_board'] . '
				AND m.id_msg IN ({array_int:msgs})',
			array(
				'msgs' => $possible_msgs,
			)
		);
		while ($row = $smcFunc['db_fetch_assoc']($request))
		{
			foreach ($flipped_msgs[$row['id_msg']] as $id_alert)
				$alerts[$id_alert]['visible'] = true;
		}
		$smcFunc['db_free_result']($request);
	}
	if (!empty($possible_topics))
	{
		$flipped_topics = array();
		foreach ($possible_topics as $id_alert => $id_topic)
		{
			if (!isset($flipped_topics[$id_topic]))
				$flipped_topics[$id_topic] = array();

			$flipped_topics[$id_topic][] = $id_alert;
		}

		$request = $smcFunc['db_query']('', '
			SELECT t.id_topic
			FROM {db_prefix}topics AS t
			WHERE ' . $qb['query_see_topic_board'] . '
				AND t.id_topic IN ({array_int:topics})',
			array(
				'topics' => $possible_topics,
			)
		);
		while ($row = $smcFunc['db_fetch_assoc']($request))
		{
			foreach ($flipped_topics[$row['id_topic']] as $id_alert)
				$alerts[$id_alert]['visible'] = true;
		}
		$smcFunc['db_free_result']($request);
	}

	// Now check alerts again and remove any they can't see.
	foreach ($alerts as $id_alert => $alert)
	{
		if (!$alert['visible'])
			unset($alerts[$id_alert]);
	}

	return count($alerts);
}

/**
 * Handles alerts related to topics and posts
 *
 * @param int $memID The ID of the member
 */
function alert_notifications_topics($memID)
{
	global $txt, $scripturl, $context, $modSettings, $sourcedir;

	// Because of the way this stuff works, we want to do this ourselves.
	if (isset($_POST['edit_notify_topics']) || isset($_POST['remove_notify_topics']))
	{
		checkSession();
		validateToken(str_replace('%u', $memID, 'profile-nt%u'), 'post');

		makeNotificationChanges($memID);
		$context['profile_updated'] = $txt['profile_updated_own'];
	}

	// Now set up for the token check.
	$context['token_check'] = str_replace('%u', $memID, 'profile-nt%u');
	createToken($context['token_check'], 'post');

	// Gonna want this for the list.
	require_once($sourcedir . '/Subs-List.php');

	// Do the topic notifications.
	$listOptions = array(
		'id' => 'topic_notification_list',
		'width' => '100%',
		'items_per_page' => $modSettings['defaultMaxListItems'],
		'no_items_label' => $txt['notifications_topics_none'] . '<br><br>' . $txt['notifications_topics_howto'],
		'no_items_align' => 'left',
		'base_href' => $scripturl . '?action=profile;u=' . $memID . ';area=notification;sa=topics',
		'default_sort_col' => 'last_post',
		'get_items' => array(
			'function' => 'list_getTopicNotifications',
			'params' => array(
				$memID,
			),
		),
		'get_count' => array(
			'function' => 'list_getTopicNotificationCount',
			'params' => array(
				$memID,
			),
		),
		'columns' => array(
			'subject' => array(
				'header' => array(
					'value' => $txt['notifications_topics'],
					'class' => 'lefttext',
				),
				'data' => array(
					'function' => function($topic) use ($txt)
					{
						$link = $topic['link'];

						if ($topic['new'])
							$link .= ' <a href="' . $topic['new_href'] . '" class="new_posts">' . $txt['new'] . '</a>';

						$link .= '<br><span class="smalltext"><em>' . $txt['in'] . ' ' . $topic['board_link'] . '</em></span>';

						return $link;
					},
				),
				'sort' => array(
					'default' => 'ms.subject',
					'reverse' => 'ms.subject DESC',
				),
			),
			'started_by' => array(
				'header' => array(
					'value' => $txt['started_by'],
					'class' => 'lefttext',
				),
				'data' => array(
					'db' => 'poster_link',
				),
				'sort' => array(
					'default' => 'real_name_col',
					'reverse' => 'real_name_col DESC',
				),
			),
			'last_post' => array(
				'header' => array(
					'value' => $txt['last_post'],
					'class' => 'lefttext',
				),
				'data' => array(
					'sprintf' => array(
						'format' => '<span class="smalltext">%1$s<br>' . $txt['by'] . ' %2$s</span>',
						'params' => array(
							'updated' => false,
							'poster_updated_link' => false,
						),
					),
				),
				'sort' => array(
					'default' => 'ml.id_msg DESC',
					'reverse' => 'ml.id_msg',
				),
			),
			'alert' => array(
				'header' => array(
					'value' => $txt['notify_what_how'],
					'class' => 'lefttext',
				),
				'data' => array(
					'function' => function($topic) use ($txt)
					{
						$pref = $topic['notify_pref'];
						$mode = !empty($topic['unwatched']) ? 0 : ($pref & 0x02 ? 3 : ($pref & 0x01 ? 2 : 1));
						return $txt['notify_topic_' . $mode];
					},
				),
			),
			'delete' => array(
				'header' => array(
					'value' => '<input type="checkbox" onclick="invertAll(this, this.form);">',
					'style' => 'width: 4%;',
					'class' => 'centercol',
				),
				'data' => array(
					'sprintf' => array(
						'format' => '<input type="checkbox" name="notify_topics[]" value="%1$d">',
						'params' => array(
							'id' => false,
						),
					),
					'class' => 'centercol',
				),
			),
		),
		'form' => array(
			'href' => $scripturl . '?action=profile;area=notification;sa=topics',
			'include_sort' => true,
			'include_start' => true,
			'hidden_fields' => array(
				'u' => $memID,
				'sa' => $context['menu_item_selected'],
				$context['session_var'] => $context['session_id'],
			),
			'token' => $context['token_check'],
		),
		'additional_rows' => array(
			array(
				'position' => 'bottom_of_list',
				'value' => '<input type="submit" name="edit_notify_topics" value="' . $txt['notifications_update'] . '" class="button" />
							<input type="submit" name="remove_notify_topics" value="' . $txt['notification_remove_pref'] . '" class="button" />',
				'class' => 'floatright',
			),
		),
	);

	// Create the notification list.
	createList($listOptions);
}

/**
 * Handles preferences related to board-level notifications
 *
 * @param int $memID The ID of the member
 */
function alert_notifications_boards($memID)
{
	global $txt, $scripturl, $context, $sourcedir;

	// Because of the way this stuff works, we want to do this ourselves.
	if (isset($_POST['edit_notify_boards']) || isset($_POSt['remove_notify_boards']))
	{
		checkSession();
		validateToken(str_replace('%u', $memID, 'profile-nt%u'), 'post');

		makeNotificationChanges($memID);
		$context['profile_updated'] = $txt['profile_updated_own'];
	}

	// Now set up for the token check.
	$context['token_check'] = str_replace('%u', $memID, 'profile-nt%u');
	createToken($context['token_check'], 'post');

	// Gonna want this for the list.
	require_once($sourcedir . '/Subs-List.php');

	// Fine, start with the board list.
	$listOptions = array(
		'id' => 'board_notification_list',
		'width' => '100%',
		'no_items_label' => $txt['notifications_boards_none'] . '<br><br>' . $txt['notifications_boards_howto'],
		'no_items_align' => 'left',
		'base_href' => $scripturl . '?action=profile;u=' . $memID . ';area=notification;sa=boards',
		'default_sort_col' => 'board_name',
		'get_items' => array(
			'function' => 'list_getBoardNotifications',
			'params' => array(
				$memID,
			),
		),
		'columns' => array(
			'board_name' => array(
				'header' => array(
					'value' => $txt['notifications_boards'],
					'class' => 'lefttext',
				),
				'data' => array(
					'function' => function($board) use ($txt)
					{
						$link = $board['link'];

						if ($board['new'])
							$link .= ' <a href="' . $board['href'] . '" class="new_posts">' . $txt['new'] . '</a>';

						return $link;
					},
				),
				'sort' => array(
					'default' => 'name',
					'reverse' => 'name DESC',
				),
			),
			'alert' => array(
				'header' => array(
					'value' => $txt['notify_what_how'],
					'class' => 'lefttext',
				),
				'data' => array(
					'function' => function($board) use ($txt)
					{
						$pref = $board['notify_pref'];
						$mode = $pref & 0x02 ? 3 : ($pref & 0x01 ? 2 : 1);
						return $txt['notify_board_' . $mode];
					},
				),
			),
			'delete' => array(
				'header' => array(
					'value' => '<input type="checkbox" onclick="invertAll(this, this.form);">',
					'style' => 'width: 4%;',
					'class' => 'centercol',
				),
				'data' => array(
					'sprintf' => array(
						'format' => '<input type="checkbox" name="notify_boards[]" value="%1$d">',
						'params' => array(
							'id' => false,
						),
					),
					'class' => 'centercol',
				),
			),
		),
		'form' => array(
			'href' => $scripturl . '?action=profile;area=notification;sa=boards',
			'include_sort' => true,
			'include_start' => true,
			'hidden_fields' => array(
				'u' => $memID,
				'sa' => $context['menu_item_selected'],
				$context['session_var'] => $context['session_id'],
			),
			'token' => $context['token_check'],
		),
		'additional_rows' => array(
			array(
				'position' => 'bottom_of_list',
				'value' => '<input type="submit" name="edit_notify_boards" value="' . $txt['notifications_update'] . '" class="button">
							<input type="submit" name="remove_notify_boards" value="' . $txt['notification_remove_pref'] . '" class="button" />',
				'class' => 'floatright',
			),
		),
	);

	// Create the board notification list.
	createList($listOptions);
}

/**
 * Determins how many topics a user has requested notifications for
 *
 * @param int $memID The ID of the member
 * @return int The number of topic notifications for this user
 */
function list_getTopicNotificationCount($memID)
{
	global $smcFunc, $user_info, $modSettings;

	$request = $smcFunc['db_query']('', '
		SELECT COUNT(*)
		FROM {db_prefix}log_notify AS ln' . (!$modSettings['postmod_active'] && $user_info['query_see_board'] === '1=1' ? '' : '
			INNER JOIN {db_prefix}topics AS t ON (t.id_topic = ln.id_topic)') . '
		WHERE ln.id_member = {int:selected_member}' . ($user_info['query_see_topic_board'] === '1=1' ? '' : '
			AND {query_see_topic_board}') . ($modSettings['postmod_active'] ? '
			AND t.approved = {int:is_approved}' : ''),
		array(
			'selected_member' => $memID,
			'is_approved' => 1,
		)
	);
	list ($totalNotifications) = $smcFunc['db_fetch_row']($request);
	$smcFunc['db_free_result']($request);

	return (int) $totalNotifications;
}

/**
 * Gets information about all the topics a user has requested notifications for. Callback for the list in alert_notifications_topics
 *
 * @param int $start Which item to start with (for pagination purposes)
 * @param int $items_per_page How many items to display on each page
 * @param string $sort A string indicating how to sort the results
 * @param int $memID The ID of the member
 * @return array An array of information about the topics a user has subscribed to
 */
function list_getTopicNotifications($start, $items_per_page, $sort, $memID)
{
	global $smcFunc, $scripturl, $user_info, $modSettings, $sourcedir;

	require_once($sourcedir . '/Subs-Notify.php');
	$prefs = getNotifyPrefs($memID);
	$prefs = isset($prefs[$memID]) ? $prefs[$memID] : array();

	// All the topics with notification on...
	$request = $smcFunc['db_query']('', '
		SELECT
			COALESCE(lt.id_msg, lmr.id_msg, -1) + 1 AS new_from, b.id_board, b.name,
			t.id_topic, ms.subject, ms.id_member, COALESCE(mem.real_name, ms.poster_name) AS real_name_col,
			ml.id_msg_modified, ml.poster_time, ml.id_member AS id_member_updated,
			COALESCE(mem2.real_name, ml.poster_name) AS last_real_name,
			lt.unwatched
		FROM {db_prefix}log_notify AS ln
			INNER JOIN {db_prefix}topics AS t ON (t.id_topic = ln.id_topic' . ($modSettings['postmod_active'] ? ' AND t.approved = {int:is_approved}' : '') . ')
			INNER JOIN {db_prefix}boards AS b ON (b.id_board = t.id_board AND {query_see_board})
			INNER JOIN {db_prefix}messages AS ms ON (ms.id_msg = t.id_first_msg)
			INNER JOIN {db_prefix}messages AS ml ON (ml.id_msg = t.id_last_msg)
			LEFT JOIN {db_prefix}members AS mem ON (mem.id_member = ms.id_member)
			LEFT JOIN {db_prefix}members AS mem2 ON (mem2.id_member = ml.id_member)
			LEFT JOIN {db_prefix}log_topics AS lt ON (lt.id_topic = t.id_topic AND lt.id_member = {int:current_member})
			LEFT JOIN {db_prefix}log_mark_read AS lmr ON (lmr.id_board = b.id_board AND lmr.id_member = {int:current_member})
		WHERE ln.id_member = {int:selected_member}
		ORDER BY {raw:sort}
		LIMIT {int:offset}, {int:items_per_page}',
		array(
			'current_member' => $user_info['id'],
			'is_approved' => 1,
			'selected_member' => $memID,
			'sort' => $sort,
			'offset' => $start,
			'items_per_page' => $items_per_page,
		)
	);
	$notification_topics = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		censorText($row['subject']);

		$notification_topics[] = array(
			'id' => $row['id_topic'],
			'poster_link' => empty($row['id_member']) ? $row['real_name_col'] : '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '">' . $row['real_name_col'] . '</a>',
			'poster_updated_link' => empty($row['id_member_updated']) ? $row['last_real_name'] : '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member_updated'] . '">' . $row['last_real_name'] . '</a>',
			'subject' => $row['subject'],
			'href' => $scripturl . '?topic=' . $row['id_topic'] . '.0',
			'link' => '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.0">' . $row['subject'] . '</a>',
			'new' => $row['new_from'] <= $row['id_msg_modified'],
			'new_from' => $row['new_from'],
			'updated' => timeformat($row['poster_time']),
			'new_href' => $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['new_from'] . '#new',
			'new_link' => '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['new_from'] . '#new">' . $row['subject'] . '</a>',
			'board_link' => '<a href="' . $scripturl . '?board=' . $row['id_board'] . '.0">' . $row['name'] . '</a>',
			'notify_pref' => isset($prefs['topic_notify_' . $row['id_topic']]) ? $prefs['topic_notify_' . $row['id_topic']] : (!empty($prefs['topic_notify']) ? $prefs['topic_notify'] : 0),
			'unwatched' => $row['unwatched'],
		);
	}
	$smcFunc['db_free_result']($request);

	return $notification_topics;
}

/**
 * Gets information about all the boards a user has requested notifications for. Callback for the list in alert_notifications_boards
 *
 * @param int $start Which item to start with (not used here)
 * @param int $items_per_page How many items to show on each page (not used here)
 * @param string $sort A string indicating how to sort the results
 * @param int $memID The ID of the member
 * @return array An array of information about all the boards a user is subscribed to
 */
function list_getBoardNotifications($start, $items_per_page, $sort, $memID)
{
	global $smcFunc, $scripturl, $user_info, $sourcedir;

	require_once($sourcedir . '/Subs-Notify.php');
	$prefs = getNotifyPrefs($memID);
	$prefs = isset($prefs[$memID]) ? $prefs[$memID] : array();

	$request = $smcFunc['db_query']('', '
		SELECT b.id_board, b.name, COALESCE(lb.id_msg, 0) AS board_read, b.id_msg_updated
		FROM {db_prefix}log_notify AS ln
			INNER JOIN {db_prefix}boards AS b ON (b.id_board = ln.id_board)
			LEFT JOIN {db_prefix}log_boards AS lb ON (lb.id_board = b.id_board AND lb.id_member = {int:current_member})
		WHERE ln.id_member = {int:selected_member}
			AND {query_see_board}
		ORDER BY {raw:sort}',
		array(
			'current_member' => $user_info['id'],
			'selected_member' => $memID,
			'sort' => $sort,
		)
	);
	$notification_boards = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
		$notification_boards[] = array(
			'id' => $row['id_board'],
			'name' => $row['name'],
			'href' => $scripturl . '?board=' . $row['id_board'] . '.0',
			'link' => '<a href="' . $scripturl . '?board=' . $row['id_board'] . '.0">' . $row['name'] . '</a>',
			'new' => $row['board_read'] < $row['id_msg_updated'],
			'notify_pref' => isset($prefs['board_notify_' . $row['id_board']]) ? $prefs['board_notify_' . $row['id_board']] : (!empty($prefs['board_notify']) ? $prefs['board_notify'] : 0),
		);
	$smcFunc['db_free_result']($request);

	return $notification_boards;
}

/**
 * Loads the theme options for a user
 *
 * @param int $memID The ID of the member
 * @param bool $defaultSettings If true, we are loading default options.
 */
function loadThemeOptions($memID, $defaultSettings = false)
{
	global $context, $options, $cur_profile, $smcFunc;

	if (isset($_POST['default_options']))
		$_POST['options'] = isset($_POST['options']) ? $_POST['options'] + $_POST['default_options'] : $_POST['default_options'];

	if ($context['user']['is_owner'])
	{
		$context['member']['options'] = $options;
		if (isset($_POST['options']) && is_array($_POST['options']))
			foreach ($_POST['options'] as $k => $v)
				$context['member']['options'][$k] = $v;
	}
	else
	{
		$request = $smcFunc['db_query']('', '
			SELECT id_member, variable, value
			FROM {db_prefix}themes
			WHERE id_theme IN (1, {int:member_theme})
				AND id_member IN (-1, {int:selected_member})',
			array(
				'member_theme' => !isset($cur_profile['id_theme']) && !empty($defaultSettings) ? 0 : (int) $cur_profile['id_theme'],
				'selected_member' => $memID,
			)
		);
		$temp = array();
		while ($row = $smcFunc['db_fetch_assoc']($request))
		{
			if ($row['id_member'] == -1)
			{
				$temp[$row['variable']] = $row['value'];
				continue;
			}

			if (isset($_POST['options'][$row['variable']]))
				$row['value'] = $_POST['options'][$row['variable']];
			$context['member']['options'][$row['variable']] = $row['value'];
		}
		$smcFunc['db_free_result']($request);

		// Load up the default theme options for any missing.
		foreach ($temp as $k => $v)
		{
			if (!isset($context['member']['options'][$k]))
				$context['member']['options'][$k] = $v;
		}
	}
}

/**
 * Handles the "ignored boards" section of the profile (if enabled)
 *
 * @param int $memID The ID of the member
 */
function ignoreboards($memID)
{
	global $context, $modSettings, $smcFunc, $cur_profile, $sourcedir;

	// Have the admins enabled this option?
	if (empty($modSettings['allow_ignore_boards']))
		fatal_lang_error('ignoreboards_disallowed', 'user');

	// Find all the boards this user is allowed to see.
	$request = $smcFunc['db_query']('order_by_board_order', '
		SELECT b.id_cat, c.name AS cat_name, b.id_board, b.name, b.child_level,
			' . (!empty($cur_profile['ignore_boards']) ? 'b.id_board IN ({array_int:ignore_boards})' : '0') . ' AS is_ignored
		FROM {db_prefix}boards AS b
			LEFT JOIN {db_prefix}categories AS c ON (c.id_cat = b.id_cat)
		WHERE {query_see_board}
			AND redirect = {string:empty_string}',
		array(
			'ignore_boards' => !empty($cur_profile['ignore_boards']) ? explode(',', $cur_profile['ignore_boards']) : array(),
			'empty_string' => '',
		)
	);
	$context['num_boards'] = $smcFunc['db_num_rows']($request);
	$context['categories'] = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		// This category hasn't been set up yet..
		if (!isset($context['categories'][$row['id_cat']]))
			$context['categories'][$row['id_cat']] = array(
				'id' => $row['id_cat'],
				'name' => $row['cat_name'],
				'boards' => array()
			);

		// Set this board up, and let the template know when it's a child.  (indent them..)
		$context['categories'][$row['id_cat']]['boards'][$row['id_board']] = array(
			'id' => $row['id_board'],
			'name' => $row['name'],
			'child_level' => $row['child_level'],
			'selected' => $row['is_ignored'],
		);
	}
	$smcFunc['db_free_result']($request);

	require_once($sourcedir . '/Subs-Boards.php');
	sortCategories($context['categories']);

	// Now, let's sort the list of categories into the boards for templates that like that.
	$temp_boards = array();
	foreach ($context['categories'] as $category)
	{
		// Include a list of boards per category for easy toggling.
		$context['categories'][$category['id']]['child_ids'] = array_keys($category['boards']);

		$temp_boards[] = array(
			'name' => $category['name'],
			'child_ids' => array_keys($category['boards'])
		);
		$temp_boards = array_merge($temp_boards, array_values($category['boards']));
	}

	$max_boards = ceil(count($temp_boards) / 2);
	if ($max_boards == 1)
		$max_boards = 2;

	// Now, alternate them so they can be shown left and right ;).
	$context['board_columns'] = array();
	for ($i = 0; $i < $max_boards; $i++)
	{
		$context['board_columns'][] = $temp_boards[$i];
		if (isset($temp_boards[$i + $max_boards]))
			$context['board_columns'][] = $temp_boards[$i + $max_boards];
		else
			$context['board_columns'][] = array();
	}

	loadThemeOptions($memID);
}

/**
 * Load all the languages for the profile
 * .
 * @return bool Whether or not the forum has multiple languages installed
 */
function profileLoadLanguages()
{
	global $context;

	$context['profile_languages'] = array();

	// Get our languages!
	getLanguages();

	// Setup our languages.
	foreach ($context['languages'] as $lang)
	{
		$context['profile_languages'][$lang['filename']] = strtr($lang['name'], array('-utf8' => ''));
	}
	ksort($context['profile_languages']);

	// Return whether we should proceed with this.
	return count($context['profile_languages']) > 1 ? true : false;
}

/**
 * Handles the "manage groups" section of the profile
 *
 * @return true Always returns true
 */
function profileLoadGroups()
{
	global $cur_profile, $txt, $context, $smcFunc, $user_settings;

	$context['member_groups'] = array(
		0 => array(
			'id' => 0,
			'name' => $txt['no_primary_membergroup'],
			'is_primary' => $cur_profile['id_group'] == 0,
			'can_be_additional' => false,
			'can_be_primary' => true,
		)
	);
	$curGroups = explode(',', $cur_profile['additional_groups']);

	// Load membergroups, but only those groups the user can assign.
	$request = $smcFunc['db_query']('', '
		SELECT group_name, id_group, hidden
		FROM {db_prefix}membergroups
		WHERE id_group != {int:moderator_group}
			AND min_posts = {int:min_posts}' . (allowedTo('admin_forum') ? '' : '
			AND group_type != {int:is_protected}') . '
		ORDER BY min_posts, CASE WHEN id_group < {int:newbie_group} THEN id_group ELSE 4 END, group_name',
		array(
			'moderator_group' => 3,
			'min_posts' => -1,
			'is_protected' => 1,
			'newbie_group' => 4,
		)
	);
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		// We should skip the administrator group if they don't have the admin_forum permission!
		if ($row['id_group'] == 1 && !allowedTo('admin_forum'))
			continue;

		$context['member_groups'][$row['id_group']] = array(
			'id' => $row['id_group'],
			'name' => $row['group_name'],
			'is_primary' => $cur_profile['id_group'] == $row['id_group'],
			'is_additional' => in_array($row['id_group'], $curGroups),
			'can_be_additional' => true,
			'can_be_primary' => $row['hidden'] != 2,
		);
	}
	$smcFunc['db_free_result']($request);

	$context['member']['group_id'] = $user_settings['id_group'];

	return true;
}

/**
 * Load key signature context data.
 *
 * @return true Always returns true
 */
function profileLoadSignatureData()
{
	global $modSettings, $context, $txt, $cur_profile, $memberContext;

	// Signature limits.
	list ($sig_limits, $sig_bbc) = explode(':', $modSettings['signature_settings']);
	$sig_limits = explode(',', $sig_limits);

	$context['signature_enabled'] = isset($sig_limits[0]) ? $sig_limits[0] : 0;
	$context['signature_limits'] = array(
		'max_length' => isset($sig_limits[1]) ? $sig_limits[1] : 0,
		'max_lines' => isset($sig_limits[2]) ? $sig_limits[2] : 0,
		'max_images' => isset($sig_limits[3]) ? $sig_limits[3] : 0,
		'max_smileys' => isset($sig_limits[4]) ? $sig_limits[4] : 0,
		'max_image_width' => isset($sig_limits[5]) ? $sig_limits[5] : 0,
		'max_image_height' => isset($sig_limits[6]) ? $sig_limits[6] : 0,
		'max_font_size' => isset($sig_limits[7]) ? $sig_limits[7] : 0,
		'bbc' => !empty($sig_bbc) ? explode(',', $sig_bbc) : array(),
	);
	// Kept this line in for backwards compatibility!
	$context['max_signature_length'] = $context['signature_limits']['max_length'];
	// Warning message for signature image limits?
	$context['signature_warning'] = '';
	if ($context['signature_limits']['max_image_width'] && $context['signature_limits']['max_image_height'])
		$context['signature_warning'] = sprintf($txt['profile_error_signature_max_image_size'], $context['signature_limits']['max_image_width'], $context['signature_limits']['max_image_height']);
	elseif ($context['signature_limits']['max_image_width'] || $context['signature_limits']['max_image_height'])
		$context['signature_warning'] = sprintf($txt['profile_error_signature_max_image_' . ($context['signature_limits']['max_image_width'] ? 'width' : 'height')], $context['signature_limits'][$context['signature_limits']['max_image_width'] ? 'max_image_width' : 'max_image_height']);

	$context['show_spellchecking'] = !empty($modSettings['enableSpellChecking']) && (function_exists('pspell_new') || (function_exists('enchant_broker_init') && ($txt['lang_character_set'] == 'UTF-8' || function_exists('iconv'))));

	if (empty($context['do_preview']))
		$context['member']['signature'] = empty($cur_profile['signature']) ? '' : str_replace(array('<br>', '<', '>', '"', '\''), array("\n", '&lt;', '&gt;', '&quot;', '&#039;'), $cur_profile['signature']);
	else
	{
		$signature = !empty($_POST['signature']) ? $_POST['signature'] : '';
		$validation = profileValidateSignature($signature);
		if (empty($context['post_errors']))
		{
			loadLanguage('Errors');
			$context['post_errors'] = array();
		}
		$context['post_errors'][] = 'signature_not_yet_saved';
		if ($validation !== true && $validation !== false)
			$context['post_errors'][] = $validation;

		censorText($context['member']['signature']);
		$context['member']['current_signature'] = $context['member']['signature'];
		censorText($signature);
		$context['member']['signature_preview'] = parse_bbc($signature, true, 'sig' . $memberContext[$context['id_member']]);
		$context['member']['signature'] = $_POST['signature'];
	}

	// Load the spell checker?
	if ($context['show_spellchecking'])
		loadJavaScriptFile('spellcheck.js', array('defer' => false, 'minimize' => true), 'smf_spellcheck');

	return true;
}

/**
 * Load avatar context data.
 *
 * @return true Always returns true
 */
function profileLoadAvatarData()
{
	global $context, $cur_profile, $modSettings, $scripturl;

	$context['avatar_url'] = $modSettings['avatar_url'];

	// Default context.
	$context['member']['avatar'] += array(
		'custom' => stristr($cur_profile['avatar'], 'http://') || stristr($cur_profile['avatar'], 'https://') ? $cur_profile['avatar'] : 'http://',
		'selection' => $cur_profile['avatar'] == '' || (stristr($cur_profile['avatar'], 'http://') || stristr($cur_profile['avatar'], 'https://')) ? '' : $cur_profile['avatar'],
		'allow_server_stored' => (empty($modSettings['gravatarEnabled']) || empty($modSettings['gravatarOverride'])) && (allowedTo('profile_server_avatar') || (!$context['user']['is_owner'] && allowedTo('profile_extra_any'))),
		'allow_upload' => (empty($modSettings['gravatarEnabled']) || empty($modSettings['gravatarOverride'])) && (allowedTo('profile_upload_avatar') || (!$context['user']['is_owner'] && allowedTo('profile_extra_any'))),
		'allow_external' => (empty($modSettings['gravatarEnabled']) || empty($modSettings['gravatarOverride'])) && (allowedTo('profile_remote_avatar') || (!$context['user']['is_owner'] && allowedTo('profile_extra_any'))),
		'allow_gravatar' => !empty($modSettings['gravatarEnabled']) || !empty($modSettings['gravatarOverride']),
	);

	if ($context['member']['avatar']['allow_gravatar'] && (stristr($cur_profile['avatar'], 'gravatar://') || !empty($modSettings['gravatarOverride'])))
	{
		$context['member']['avatar'] += array(
			'choice' => 'gravatar',
			'server_pic' => 'blank.png',
			'external' => $cur_profile['avatar'] == 'gravatar://' || empty($modSettings['gravatarAllowExtraEmail']) || !empty($modSettings['gravatarOverride']) ? $cur_profile['email_address'] : substr($cur_profile['avatar'], 11)
		);
		$context['member']['avatar']['href'] = get_gravatar_url($context['member']['avatar']['external']);
	}
	elseif ($cur_profile['avatar'] == '' && $cur_profile['id_attach'] > 0 && $context['member']['avatar']['allow_upload'])
	{
		$context['member']['avatar'] += array(
			'choice' => 'upload',
			'server_pic' => 'blank.png',
			'external' => 'http://'
		);
		$context['member']['avatar']['href'] = empty($cur_profile['attachment_type']) ? $scripturl . '?action=dlattach;attach=' . $cur_profile['id_attach'] . ';type=avatar' : $modSettings['custom_avatar_url'] . '/' . $cur_profile['filename'];
	}
	// Use "avatar_original" here so we show what the user entered even if the image proxy is enabled
	elseif ((stristr($cur_profile['avatar'], 'http://') || stristr($cur_profile['avatar'], 'https://')) && $context['member']['avatar']['allow_external'])
		$context['member']['avatar'] += array(
			'choice' => 'external',
			'server_pic' => 'blank.png',
			'external' => $cur_profile['avatar_original']
		);
	elseif ($cur_profile['avatar'] != '' && file_exists($modSettings['avatar_directory'] . '/' . $cur_profile['avatar']) && $context['member']['avatar']['allow_server_stored'])
		$context['member']['avatar'] += array(
			'choice' => 'server_stored',
			'server_pic' => $cur_profile['avatar'] == '' ? 'blank.png' : $cur_profile['avatar'],
			'external' => 'http://'
		);
	else
		$context['member']['avatar'] += array(
			'choice' => 'none',
			'server_pic' => 'blank.png',
			'external' => 'http://'
		);

	// Get a list of all the avatars.
	if ($context['member']['avatar']['allow_server_stored'])
	{
		$context['avatar_list'] = array();
		$context['avatars'] = is_dir($modSettings['avatar_directory']) ? getAvatars('', 0) : array();
	}
	else
		$context['avatars'] = array();

	// Second level selected avatar...
	$context['avatar_selected'] = substr(strrchr($context['member']['avatar']['server_pic'], '/'), 1);
	return !empty($context['member']['avatar']['allow_server_stored']) || !empty($context['member']['avatar']['allow_external']) || !empty($context['member']['avatar']['allow_upload']) || !empty($context['member']['avatar']['allow_gravatar']);
}

/**
 * Save a members group.
 *
 * @param int &$value The ID of the (new) primary group
 * @return true Always returns true
 */
function profileSaveGroups(&$value)
{
	global $profile_vars, $old_profile, $context, $smcFunc, $cur_profile;

	// Do we need to protect some groups?
	if (!allowedTo('admin_forum'))
	{
		$request = $smcFunc['db_query']('', '
			SELECT id_group
			FROM {db_prefix}membergroups
			WHERE group_type = {int:is_protected}',
			array(
				'is_protected' => 1,
			)
		);
		$protected_groups = array(1);
		while ($row = $smcFunc['db_fetch_assoc']($request))
			$protected_groups[] = $row['id_group'];
		$smcFunc['db_free_result']($request);

		$protected_groups = array_unique($protected_groups);
	}

	// The account page allows the change of your id_group - but not to a protected group!
	if (empty($protected_groups) || count(array_intersect(array((int) $value, $old_profile['id_group']), $protected_groups)) == 0)
		$value = (int) $value;
	// ... otherwise it's the old group sir.
	else
		$value = $old_profile['id_group'];

	// Find the additional membergroups (if any)
	if (isset($_POST['additional_groups']) && is_array($_POST['additional_groups']))
	{
		$additional_groups = array();
		foreach ($_POST['additional_groups'] as $group_id)
		{
			$group_id = (int) $group_id;
			if (!empty($group_id) && (empty($protected_groups) || !in_array($group_id, $protected_groups)))
				$additional_groups[] = $group_id;
		}

		// Put the protected groups back in there if you don't have permission to take them away.
		$old_additional_groups = explode(',', $old_profile['additional_groups']);
		foreach ($old_additional_groups as $group_id)
		{
			if (!empty($protected_groups) && in_array($group_id, $protected_groups))
				$additional_groups[] = $group_id;
		}

		if (implode(',', $additional_groups) !== $old_profile['additional_groups'])
		{
			$profile_vars['additional_groups'] = implode(',', $additional_groups);
			$cur_profile['additional_groups'] = implode(',', $additional_groups);
		}
	}

	// Too often, people remove delete their own account, or something.
	if (in_array(1, explode(',', $old_profile['additional_groups'])) || $old_profile['id_group'] == 1)
	{
		$stillAdmin = $value == 1 || (isset($additional_groups) && in_array(1, $additional_groups));

		// If they would no longer be an admin, look for any other...
		if (!$stillAdmin)
		{
			$request = $smcFunc['db_query']('', '
				SELECT id_member
				FROM {db_prefix}members
				WHERE (id_group = {int:admin_group} OR FIND_IN_SET({int:admin_group}, additional_groups) != 0)
					AND id_member != {int:selected_member}
				LIMIT 1',
				array(
					'admin_group' => 1,
					'selected_member' => $context['id_member'],
				)
			);
			list ($another) = $smcFunc['db_fetch_row']($request);
			$smcFunc['db_free_result']($request);

			if (empty($another))
				fatal_lang_error('at_least_one_admin', 'critical');
		}
	}

	// If we are changing group status, update permission cache as necessary.
	if ($value != $old_profile['id_group'] || isset($profile_vars['additional_groups']))
	{
		if ($context['user']['is_owner'])
			$_SESSION['mc']['time'] = 0;
		else
			updateSettings(array('settings_updated' => time()));
	}

	// Announce to any hooks that we have changed groups, but don't allow them to change it.
	call_integration_hook('integrate_profile_profileSaveGroups', array($value, $additional_groups));

	return true;
}

/**
 * The avatar is incredibly complicated, what with the options... and what not.
 *
 * @todo argh, the avatar here. Take this out of here!
 *
 * @param string &$value What kind of avatar we're expecting. Can be 'none', 'server_stored', 'gravatar', 'external' or 'upload'
 * @return bool|string False if success (or if memID is empty and password authentication failed), otherwise a string indicating what error occurred
 */
function profileSaveAvatarData(&$value)
{
	global $modSettings, $sourcedir, $smcFunc, $profile_vars, $cur_profile, $context;

	$memID = $context['id_member'];
	$context['max_external_size_url'] = 255;

	if (empty($memID) && !empty($context['password_auth_failed']))
		return false;

	require_once($sourcedir . '/ManageAttachments.php');

	call_integration_hook('before_profile_save_avatar', array(&$value));

	// External url too large
	if ($value == 'external' && allowedTo('profile_remote_avatar') && strlen($_POST['userpicpersonal']) > $context['max_external_size_url'])
		return 'bad_avatar_url_too_long';

	// We're going to put this on a nice custom dir.
	$uploadDir = $modSettings['custom_avatar_dir'];
	$id_folder = 1;

	$downloadedExternalAvatar = false;
	if ($value == 'external' && allowedTo('profile_remote_avatar') && (stripos($_POST['userpicpersonal'], 'http://') === 0 || stripos($_POST['userpicpersonal'], 'https://') === 0) && strlen($_POST['userpicpersonal']) > 7 && !empty($modSettings['avatar_download_external']))
	{
		if (!is_writable($uploadDir))
			fatal_lang_error('attachments_no_write', 'critical');

		$url = parse_url($_POST['userpicpersonal']);
		$contents = fetch_web_data($url['scheme'] . '://' . $url['host'] . (empty($url['port']) ? '' : ':' . $url['port']) . str_replace(' ', '%20', trim($url['path'])));

		$new_filename = $uploadDir . '/' . getAttachmentFilename('avatar_tmp_' . $memID, false, null, true);
		if ($contents != false && $tmpAvatar = fopen($new_filename, 'wb'))

It seems like you are loosely comparing $contents of type false|string against false; this is ambiguous if the string can be empty. Consider using a strict comparison !== instead.

		{
			fwrite($tmpAvatar, $contents);
			fclose($tmpAvatar);

			$downloadedExternalAvatar = true;
			$_FILES['attachment']['tmp_name'] = $new_filename;
		}
	}

	// Removes whatever attachment there was before updating
	if ($value == 'none')
	{
		$profile_vars['avatar'] = '';

		// Reset the attach ID.
		$cur_profile['id_attach'] = 0;
		$cur_profile['attachment_type'] = 0;
		$cur_profile['filename'] = '';

		removeAttachments(array('id_member' => $memID));
	}

	// An avatar from the server-stored galleries.
	elseif ($value == 'server_stored' && allowedTo('profile_server_avatar'))
	{
		$profile_vars['avatar'] = strtr(empty($_POST['file']) ? (empty($_POST['cat']) ? '' : $_POST['cat']) : $_POST['file'], array('&' => '&'));
		$profile_vars['avatar'] = preg_match('~^([\w _!@%*=\-#()\[\]&.,]+/)?[\w _!@%*=\-#()\[\]&.,]+$~', $profile_vars['avatar']) != 0 && preg_match('/\.\./', $profile_vars['avatar']) == 0 && file_exists($modSettings['avatar_directory'] . '/' . $profile_vars['avatar']) ? ($profile_vars['avatar'] == 'blank.png' ? '' : $profile_vars['avatar']) : '';

		// Clear current profile...
		$cur_profile['id_attach'] = 0;
		$cur_profile['attachment_type'] = 0;
		$cur_profile['filename'] = '';

		// Get rid of their old avatar. (if uploaded.)
		removeAttachments(array('id_member' => $memID));
	}
	elseif ($value == 'gravatar' && !empty($modSettings['gravatarEnabled']))
	{
		// One wasn't specified, or it's not allowed to use extra email addresses, or it's not a valid one, reset to default Gravatar.
		if (empty($_POST['gravatarEmail']) || empty($modSettings['gravatarAllowExtraEmail']) || !filter_var($_POST['gravatarEmail'], FILTER_VALIDATE_EMAIL))
			$profile_vars['avatar'] = 'gravatar://';
		else
			$profile_vars['avatar'] = 'gravatar://' . ($_POST['gravatarEmail'] != $cur_profile['email_address'] ? $_POST['gravatarEmail'] : '');

		// Get rid of their old avatar. (if uploaded.)
		removeAttachments(array('id_member' => $memID));
	}
	elseif ($value == 'external' && allowedTo('profile_remote_avatar') && (stripos($_POST['userpicpersonal'], 'http://') === 0 || stripos($_POST['userpicpersonal'], 'https://') === 0) && empty($modSettings['avatar_download_external']))
	{
		// We need these clean...
		$cur_profile['id_attach'] = 0;
		$cur_profile['attachment_type'] = 0;
		$cur_profile['filename'] = '';

		// Remove any attached avatar...
		removeAttachments(array('id_member' => $memID));

		$profile_vars['avatar'] = str_replace(' ', '%20', preg_replace('~action(?:=|%3d)(?!dlattach)~i', 'action-', $_POST['userpicpersonal']));
		$mime_valid = check_mime_type($profile_vars['avatar'], 'image/', true);

		if ($profile_vars['avatar'] == 'http://' || $profile_vars['avatar'] == 'http:///')
			$profile_vars['avatar'] = '';
		// Trying to make us do something we'll regret?
		elseif (substr($profile_vars['avatar'], 0, 7) != 'http://' && substr($profile_vars['avatar'], 0, 8) != 'https://')
			return 'bad_avatar_invalid_url';
		elseif (empty($mime_valid))
			return 'bad_avatar';
		// Should we check dimensions?
		elseif (!empty($modSettings['avatar_max_height_external']) || !empty($modSettings['avatar_max_width_external']))
		{
			// Now let's validate the avatar.
			$sizes = url_image_size($profile_vars['avatar']);

			if (is_array($sizes) && (($sizes[0] > $modSettings['avatar_max_width_external']
				&& !empty($modSettings['avatar_max_width_external'])) || ($sizes[1] > $modSettings['avatar_max_height_external']
				&& !empty($modSettings['avatar_max_height_external']))))
			{
				// Houston, we have a problem. The avatar is too large!!
				if ($modSettings['avatar_action_too_large'] == 'option_refuse')
					return 'bad_avatar_too_large';
				elseif ($modSettings['avatar_action_too_large'] == 'option_download_and_resize')
				{
					// @todo remove this if appropriate
					require_once($sourcedir . '/Subs-Graphics.php');
					if (downloadAvatar($profile_vars['avatar'], $memID, $modSettings['avatar_max_width_external'], $modSettings['avatar_max_height_external']))
					{
						$profile_vars['avatar'] = '';
						$cur_profile['id_attach'] = $modSettings['new_avatar_data']['id'];
						$cur_profile['filename'] = $modSettings['new_avatar_data']['filename'];
						$cur_profile['attachment_type'] = $modSettings['new_avatar_data']['type'];
					}
					else
						return 'bad_avatar';
				}
			}
		}
	}

	elseif (($value == 'upload' && allowedTo('profile_upload_avatar')) || $downloadedExternalAvatar)
	{
		if ((isset($_FILES['attachment']['name']) && $_FILES['attachment']['name'] != '') || $downloadedExternalAvatar)
		{
			// Get the dimensions of the image.
			if (!$downloadedExternalAvatar)
			{
				if (!is_writable($uploadDir))
					fatal_lang_error('avatars_no_write', 'critical');

				$new_filename = $uploadDir . '/' . getAttachmentFilename('avatar_tmp_' . $memID, false, null, true);
				if (!move_uploaded_file($_FILES['attachment']['tmp_name'], $new_filename))
					fatal_lang_error('attach_timeout', 'critical');

				$_FILES['attachment']['tmp_name'] = $new_filename;
			}

			$mime_valid = check_mime_type($_FILES['attachment']['tmp_name'], 'image/', true);
			$sizes = empty($mime_valid) ? false : @getimagesize($_FILES['attachment']['tmp_name']);

			// No size, then it's probably not a valid pic.
			if ($sizes === false)
			{
				@unlink($_FILES['attachment']['tmp_name']);
				return 'bad_avatar';
			}
			// Check whether the image is too large.
			elseif ((!empty($modSettings['avatar_max_width_upload']) && $sizes[0] > $modSettings['avatar_max_width_upload'])
				|| (!empty($modSettings['avatar_max_height_upload']) && $sizes[1] > $modSettings['avatar_max_height_upload']))
			{
				if (!empty($modSettings['avatar_resize_upload']))
				{
					// Attempt to chmod it.
					smf_chmod($_FILES['attachment']['tmp_name'], 0644);

					// @todo remove this require when appropriate
					require_once($sourcedir . '/Subs-Graphics.php');
					if (!downloadAvatar($_FILES['attachment']['tmp_name'], $memID, $modSettings['avatar_max_width_upload'], $modSettings['avatar_max_height_upload']))
					{
						@unlink($_FILES['attachment']['tmp_name']);
						return 'bad_avatar';
					}

					// Reset attachment avatar data.
					$cur_profile['id_attach'] = $modSettings['new_avatar_data']['id'];
					$cur_profile['filename'] = $modSettings['new_avatar_data']['filename'];
					$cur_profile['attachment_type'] = $modSettings['new_avatar_data']['type'];
				}

				// Admin doesn't want to resize large avatars, can't do much about it but to tell you to use a different one :(
				else
				{
					@unlink($_FILES['attachment']['tmp_name']);
					return 'bad_avatar_too_large';
				}
			}

			// So far, so good, checks lies ahead!
			elseif (is_array($sizes))
			{
				// Now try to find an infection.
				require_once($sourcedir . '/Subs-Graphics.php');
				if (!checkImageContents($_FILES['attachment']['tmp_name'], !empty($modSettings['avatar_paranoid'])))
				{
					// It's bad. Try to re-encode the contents?
					if (empty($modSettings['avatar_reencode']) || (!reencodeImage($_FILES['attachment']['tmp_name'], $sizes[2])))
					{
						@unlink($_FILES['attachment']['tmp_name']);
						return 'bad_avatar_fail_reencode';
					}
					// We were successful. However, at what price?
					$sizes = @getimagesize($_FILES['attachment']['tmp_name']);
					// Hard to believe this would happen, but can you bet?
					if ($sizes === false)
					{
						@unlink($_FILES['attachment']['tmp_name']);
						return 'bad_avatar';
					}
				}

				$extensions = array(
					'1' => 'gif',
					'2' => 'jpg',
					'3' => 'png',
					'6' => 'bmp'
				);

				$extension = isset($extensions[$sizes[2]]) ? $extensions[$sizes[2]] : 'bmp';
				$mime_type = 'image/' . ($extension === 'jpg' ? 'jpeg' : ($extension === 'bmp' ? 'x-ms-bmp' : $extension));
				$destName = 'avatar_' . $memID . '_' . time() . '.' . $extension;
				list ($width, $height) = getimagesize($_FILES['attachment']['tmp_name']);
				$file_hash = '';

				// Remove previous attachments this member might have had.
				removeAttachments(array('id_member' => $memID));

				$cur_profile['id_attach'] = $smcFunc['db_insert']('',
					'{db_prefix}attachments',
					array(
						'id_member' => 'int', 'attachment_type' => 'int', 'filename' => 'string', 'file_hash' => 'string', 'fileext' => 'string', 'size' => 'int',
						'width' => 'int', 'height' => 'int', 'mime_type' => 'string', 'id_folder' => 'int',
					),
					array(
						$memID, 1, $destName, $file_hash, $extension, filesize($_FILES['attachment']['tmp_name']),
						(int) $width, (int) $height, $mime_type, $id_folder,
					),
					array('id_attach'),
					1
				);

				$cur_profile['filename'] = $destName;
				$cur_profile['attachment_type'] = 1;

				$destinationPath = $uploadDir . '/' . (empty($file_hash) ? $destName : $cur_profile['id_attach'] . '_' . $file_hash . '.dat');
				if (!rename($_FILES['attachment']['tmp_name'], $destinationPath))
				{
					// I guess a man can try.
					removeAttachments(array('id_member' => $memID));
					fatal_lang_error('attach_timeout', 'critical');
				}

				// Attempt to chmod it.
				smf_chmod($uploadDir . '/' . $destinationPath, 0644);
			}
			$profile_vars['avatar'] = '';

			// Delete any temporary file.
			if (file_exists($_FILES['attachment']['tmp_name']))
				@unlink($_FILES['attachment']['tmp_name']);
		}
		// Selected the upload avatar option and had one already uploaded before or didn't upload one.
		else
			$profile_vars['avatar'] = '';
	}
	elseif ($value == 'gravatar' && allowedTo('profile_gravatar_avatar'))
		$profile_vars['avatar'] = 'gravatar://www.gravatar.com/avatar/' . md5(strtolower(trim($cur_profile['email_address'])));

	else
		$profile_vars['avatar'] = '';

	// Setup the profile variables so it shows things right on display!
	$cur_profile['avatar'] = $profile_vars['avatar'];

	call_integration_hook('after_profile_save_avatar');

	return false;
}

/**
 * Validate the signature
 *
 * @param string &$value The new signature
 * @return bool|string True if the signature passes the checks, otherwise a string indicating what the problem is
 */
function profileValidateSignature(&$value)
{
	global $sourcedir, $modSettings, $smcFunc, $txt;

	require_once($sourcedir . '/Subs-Post.php');

	// Admins can do whatever they hell they want!
	if (!allowedTo('admin_forum'))
	{
		// Load all the signature limits.
		list ($sig_limits, $sig_bbc) = explode(':', $modSettings['signature_settings']);
		$sig_limits = explode(',', $sig_limits);
		$disabledTags = !empty($sig_bbc) ? explode(',', $sig_bbc) : array();

		$unparsed_signature = strtr(un_htmlspecialchars($value), array("\r" => '', '&#039' => '\''));

		// Too many lines?
		if (!empty($sig_limits[2]) && substr_count($unparsed_signature, "\n") >= $sig_limits[2])
		{
			$txt['profile_error_signature_max_lines'] = sprintf($txt['profile_error_signature_max_lines'], $sig_limits[2]);
			return 'signature_max_lines';
		}

		// Too many images?!
		if (!empty($sig_limits[3]) && (substr_count(strtolower($unparsed_signature), '[img') + substr_count(strtolower($unparsed_signature), '<img')) > $sig_limits[3])
		{
			$txt['profile_error_signature_max_image_count'] = sprintf($txt['profile_error_signature_max_image_count'], $sig_limits[3]);
			return 'signature_max_image_count';
		}

		// What about too many smileys!
		$smiley_parsed = $unparsed_signature;
		parsesmileys($smiley_parsed);
		$smiley_count = substr_count(strtolower($smiley_parsed), '<img') - substr_count(strtolower($unparsed_signature), '<img');
		if (!empty($sig_limits[4]) && $sig_limits[4] == -1 && $smiley_count > 0)
			return 'signature_allow_smileys';
		elseif (!empty($sig_limits[4]) && $sig_limits[4] > 0 && $smiley_count > $sig_limits[4])
		{
			$txt['profile_error_signature_max_smileys'] = sprintf($txt['profile_error_signature_max_smileys'], $sig_limits[4]);
			return 'signature_max_smileys';
		}

		// Maybe we are abusing font sizes?
		if (!empty($sig_limits[7]) && preg_match_all('~\[size=([\d\.]+)?(px|pt|em|x-large|larger)~i', $unparsed_signature, $matches) !== false && isset($matches[2]))
		{
			foreach ($matches[1] as $ind => $size)
			{
				$limit_broke = 0;
				// Attempt to allow all sizes of abuse, so to speak.
				if ($matches[2][$ind] == 'px' && $size > $sig_limits[7])
					$limit_broke = $sig_limits[7] . 'px';
				elseif ($matches[2][$ind] == 'pt' && $size > ($sig_limits[7] * 0.75))
					$limit_broke = ((int) $sig_limits[7] * 0.75) . 'pt';
				elseif ($matches[2][$ind] == 'em' && $size > ((float) $sig_limits[7] / 16))
					$limit_broke = ((float) $sig_limits[7] / 16) . 'em';
				elseif ($matches[2][$ind] != 'px' && $matches[2][$ind] != 'pt' && $matches[2][$ind] != 'em' && $sig_limits[7] < 18)
					$limit_broke = 'large';

				if ($limit_broke)
				{
					$txt['profile_error_signature_max_font_size'] = sprintf($txt['profile_error_signature_max_font_size'], $limit_broke);
					return 'signature_max_font_size';
				}
			}
		}

		// The difficult one - image sizes! Don't error on this - just fix it.
		if ((!empty($sig_limits[5]) || !empty($sig_limits[6])))
		{
			// Get all BBC tags...
			preg_match_all('~\[img(\s+width=([\d]+))?(\s+height=([\d]+))?(\s+width=([\d]+))?\s*\](?:<br>)*([^<">]+?)(?:<br>)*\[/img\]~i', $unparsed_signature, $matches);
			// ... and all HTML ones.
			preg_match_all('~<img\s+src=(?:")?((?:http://|ftp://|https://|ftps://).+?)(?:")?(?:\s+alt=(?:")?(.*?)(?:")?)?(?:\s?/)?' . '>~i', $unparsed_signature, $matches2, PREG_PATTERN_ORDER);
			// And stick the HTML in the BBC.
			if (!empty($matches2))
			{
				foreach ($matches2[0] as $ind => $dummy)
				{
					$matches[0][] = $matches2[0][$ind];
					$matches[1][] = '';
					$matches[2][] = '';
					$matches[3][] = '';
					$matches[4][] = '';
					$matches[5][] = '';
					$matches[6][] = '';
					$matches[7][] = $matches2[1][$ind];
				}
			}

			$replaces = array();
			// Try to find all the images!
			if (!empty($matches))
			{
				foreach ($matches[0] as $key => $image)
				{
					$width = -1;
					$height = -1;

					// Does it have predefined restraints? Width first.
					if ($matches[6][$key])
						$matches[2][$key] = $matches[6][$key];
					if ($matches[2][$key] && $sig_limits[5] && $matches[2][$key] > $sig_limits[5])
					{
						$width = $sig_limits[5];
						$matches[4][$key] = $matches[4][$key] * ($width / $matches[2][$key]);
					}
					elseif ($matches[2][$key])
						$width = $matches[2][$key];
					// ... and height.
					if ($matches[4][$key] && $sig_limits[6] && $matches[4][$key] > $sig_limits[6])
					{
						$height = $sig_limits[6];
						if ($width != -1)
							$width = $width * ($height / $matches[4][$key]);
					}
					elseif ($matches[4][$key])
						$height = $matches[4][$key];

					// If the dimensions are still not fixed - we need to check the actual image.
					if (($width == -1 && $sig_limits[5]) || ($height == -1 && $sig_limits[6]))
					{
						$sizes = url_image_size($matches[7][$key]);
						if (is_array($sizes))
						{
							// Too wide?
							if ($sizes[0] > $sig_limits[5] && $sig_limits[5])
							{
								$width = $sig_limits[5];
								$sizes[1] = $sizes[1] * ($width / $sizes[0]);
							}
							// Too high?
							if ($sizes[1] > $sig_limits[6] && $sig_limits[6])
							{
								$height = $sig_limits[6];
								if ($width == -1)
									$width = $sizes[0];
								$width = $width * ($height / $sizes[1]);
							}
							elseif ($width != -1)
								$height = $sizes[1];
						}
					}

					// Did we come up with some changes? If so remake the string.
					if ($width != -1 || $height != -1)
						$replaces[$image] = '[img' . ($width != -1 ? ' width=' . round($width) : '') . ($height != -1 ? ' height=' . round($height) : '') . ']' . $matches[7][$key] . '[/img]';
				}
				if (!empty($replaces))
					$value = str_replace(array_keys($replaces), array_values($replaces), $value);
			}
		}

		// Any disabled BBC?
		$disabledSigBBC = implode('|', $disabledTags);
		if (!empty($disabledSigBBC))
		{
			if (preg_match('~\[(' . $disabledSigBBC . '[ =\]/])~i', $unparsed_signature, $matches) !== false && isset($matches[1]))
			{
				$disabledTags = array_unique($disabledTags);
				$txt['profile_error_signature_disabled_bbc'] = sprintf($txt['profile_error_signature_disabled_bbc'], implode(', ', $disabledTags));
				return 'signature_disabled_bbc';
			}
		}
	}

	preparsecode($value);

	// Too long?
	if (!allowedTo('admin_forum') && !empty($sig_limits[1]) && $smcFunc['strlen'](str_replace('<br>', "\n", $value)) > $sig_limits[1])
	{
		$_POST['signature'] = trim($smcFunc['htmlspecialchars'](str_replace('<br>', "\n", $value), ENT_QUOTES));
		$txt['profile_error_signature_max_length'] = sprintf($txt['profile_error_signature_max_length'], $sig_limits[1]);
		return 'signature_max_length';
	}

	return true;
}

/**
 * Validate an email address.
 *
 * @param string $email The email address to validate
 * @param int $memID The ID of the member (used to prevent false positives from the current user)
 * @return bool|string True if the email is valid, otherwise a string indicating what the problem is
 */
function profileValidateEmail($email, $memID = 0)
{
	global $smcFunc;

	$email = strtr($email, array('&#039;' => '\''));

	// Check the name and email for validity.
	if (trim($email) == '')
		return 'no_email';
	if (!filter_var($email, FILTER_VALIDATE_EMAIL))
		return 'bad_email';

	// Email addresses should be and stay unique.
	$request = $smcFunc['db_query']('', '
		SELECT id_member
		FROM {db_prefix}members
		WHERE ' . ($memID != 0 ? 'id_member != {int:selected_member} AND ' : '') . '
			email_address = {string:email_address}
		LIMIT 1',
		array(
			'selected_member' => $memID,
			'email_address' => $email,
		)
	);

	if ($smcFunc['db_num_rows']($request) > 0)
		return 'email_taken';
	$smcFunc['db_free_result']($request);

	return true;
}

/**
 * Reload a user's settings.
 */
function profileReloadUser()
{
	global $modSettings, $context, $cur_profile;

	if (isset($_POST['passwrd2']) && $_POST['passwrd2'] != '')
		setLoginCookie(60 * $modSettings['cookieTime'], $context['id_member'], hash_salt($_POST['passwrd1'], $cur_profile['password_salt']));

	loadUserSettings();
	writeLog();
}

/**
 * Send the user a new activation email if they need to reactivate!
 */
function profileSendActivation()
{
	global $sourcedir, $profile_vars, $context, $scripturl, $smcFunc, $cookiename, $cur_profile, $language, $modSettings;

	require_once($sourcedir . '/Subs-Post.php');

	// Shouldn't happen but just in case.
	if (empty($profile_vars['email_address']))
		return;

	$replacements = array(
		'ACTIVATIONLINK' => $scripturl . '?action=activate;u=' . $context['id_member'] . ';code=' . $profile_vars['validation_code'],
		'ACTIVATIONCODE' => $profile_vars['validation_code'],
		'ACTIVATIONLINKWITHOUTCODE' => $scripturl . '?action=activate;u=' . $context['id_member'],
	);

	// Send off the email.
	$emaildata = loadEmailTemplate('activate_reactivate', $replacements, empty($cur_profile['lngfile']) || empty($modSettings['userLanguage']) ? $language : $cur_profile['lngfile']);
	sendmail($profile_vars['email_address'], $emaildata['subject'], $emaildata['body'], null, 'reactivate', $emaildata['is_html'], 0);

	// Log the user out.
	$smcFunc['db_query']('', '
		DELETE FROM {db_prefix}log_online
		WHERE id_member = {int:selected_member}',
		array(
			'selected_member' => $context['id_member'],
		)
	);
	$_SESSION['log_time'] = 0;
	$_SESSION['login_' . $cookiename] = $smcFunc['json_encode'](array(0, '', 0));

	if (isset($_COOKIE[$cookiename]))
		$_COOKIE[$cookiename] = '';

	loadUserSettings();

	$context['user']['is_logged'] = false;
	$context['user']['is_guest'] = true;

	redirectexit('action=sendactivation');
}

/**
 * Function to allow the user to choose group membership etc...
 *
 * @param int $memID The ID of the member
 */
function groupMembership($memID)
{
	global $txt, $user_profile, $context, $smcFunc;

	$curMember = $user_profile[$memID];
	$context['primary_group'] = $curMember['id_group'];

	// Can they manage groups?
	$context['can_manage_membergroups'] = allowedTo('manage_membergroups');
	$context['can_manage_protected'] = allowedTo('admin_forum');
	$context['can_edit_primary'] = $context['can_manage_protected'];
	$context['update_message'] = isset($_GET['msg']) && isset($txt['group_membership_msg_' . $_GET['msg']]) ? $txt['group_membership_msg_' . $_GET['msg']] : '';

	// Get all the groups this user is a member of.
	$groups = explode(',', $curMember['additional_groups']);
	$groups[] = $curMember['id_group'];

	// Ensure the query doesn't croak!
	if (empty($groups))
		$groups = array(0);
	// Just to be sure...
	foreach ($groups as $k => $v)
		$groups[$k] = (int) $v;

	// Get all the membergroups they can join.
	$request = $smcFunc['db_query']('', '
		SELECT mg.id_group, mg.group_name, mg.description, mg.group_type, mg.online_color, mg.hidden,
			COALESCE(lgr.id_member, 0) AS pending
		FROM {db_prefix}membergroups AS mg
			LEFT JOIN {db_prefix}log_group_requests AS lgr ON (lgr.id_member = {int:selected_member} AND lgr.id_group = mg.id_group AND lgr.status = {int:status_open})
		WHERE (mg.id_group IN ({array_int:group_list})
			OR mg.group_type > {int:nonjoin_group_id})
			AND mg.min_posts = {int:min_posts}
			AND mg.id_group != {int:moderator_group}
		ORDER BY group_name',
		array(
			'group_list' => $groups,
			'selected_member' => $memID,
			'status_open' => 0,
			'nonjoin_group_id' => 1,
			'min_posts' => -1,
			'moderator_group' => 3,
		)
	);
	// This beast will be our group holder.
	$context['groups'] = array(
		'member' => array(),
		'available' => array()
	);
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		// Can they edit their primary group?
		if (($row['id_group'] == $context['primary_group'] && $row['group_type'] > 1) || ($row['hidden'] != 2 && $context['primary_group'] == 0 && in_array($row['id_group'], $groups)))
			$context['can_edit_primary'] = true;

		// If they can't manage (protected) groups, and it's not publically joinable or already assigned, they can't see it.
		if (((!$context['can_manage_protected'] && $row['group_type'] == 1) || (!$context['can_manage_membergroups'] && $row['group_type'] == 0)) && $row['id_group'] != $context['primary_group'])
			continue;

		$context['groups'][in_array($row['id_group'], $groups) ? 'member' : 'available'][$row['id_group']] = array(
			'id' => $row['id_group'],
			'name' => $row['group_name'],
			'desc' => $row['description'],
			'color' => $row['online_color'],
			'type' => $row['group_type'],
			'pending' => $row['pending'],
			'is_primary' => $row['id_group'] == $context['primary_group'],
			'can_be_primary' => $row['hidden'] != 2,
			// Anything more than this needs to be done through account settings for security.
			'can_leave' => $row['id_group'] != 1 && $row['group_type'] > 1 ? true : false,
		);
	}
	$smcFunc['db_free_result']($request);

	// Add registered members on the end.
	$context['groups']['member'][0] = array(
		'id' => 0,
		'name' => $txt['regular_members'],
		'desc' => $txt['regular_members_desc'],
		'type' => 0,
		'is_primary' => $context['primary_group'] == 0 ? true : false,
		'can_be_primary' => true,
		'can_leave' => 0,
	);

	// No changing primary one unless you have enough groups!
	if (count($context['groups']['member']) < 2)
		$context['can_edit_primary'] = false;

	// In the special case that someone is requesting membership of a group, setup some special context vars.
	if (isset($_REQUEST['request']) && isset($context['groups']['available'][(int) $_REQUEST['request']]) && $context['groups']['available'][(int) $_REQUEST['request']]['type'] == 2)
		$context['group_request'] = $context['groups']['available'][(int) $_REQUEST['request']];
}

/**
 * This function actually makes all the group changes
 *
 * @param array $profile_vars The profile variables
 * @param array $post_errors Any errors that have occurred
 * @param int $memID The ID of the member
 * @return string What type of change this is - 'primary' if changing the primary group, 'request' if requesting to join a group or 'free' if it's an open group
 */
function groupMembership2($profile_vars, $post_errors, $memID)
{
	global $user_info, $context, $user_profile, $modSettings, $smcFunc;

	// Let's be extra cautious...
	if (!$context['user']['is_owner'] || empty($modSettings['show_group_membership']))
		isAllowedTo('manage_membergroups');
	if (!isset($_REQUEST['gid']) && !isset($_POST['primary']))
		fatal_lang_error('no_access', false);

	checkSession(isset($_GET['gid']) ? 'get' : 'post');

	$old_profile = &$user_profile[$memID];
	$context['can_manage_membergroups'] = allowedTo('manage_membergroups');
	$context['can_manage_protected'] = allowedTo('admin_forum');

	// By default the new primary is the old one.
	$newPrimary = $old_profile['id_group'];
	$addGroups = array_flip(explode(',', $old_profile['additional_groups']));
	$canChangePrimary = $old_profile['id_group'] == 0 ? 1 : 0;
	$changeType = isset($_POST['primary']) ? 'primary' : (isset($_POST['req']) ? 'request' : 'free');

	// One way or another, we have a target group in mind...
	$group_id = isset($_REQUEST['gid']) ? (int) $_REQUEST['gid'] : (int) $_POST['primary'];
	$foundTarget = $changeType == 'primary' && $group_id == 0 ? true : false;

	// Sanity check!!
	if ($group_id == 1)
		isAllowedTo('admin_forum');
	// Protected groups too!
	else
	{
		$request = $smcFunc['db_query']('', '
			SELECT group_type
			FROM {db_prefix}membergroups
			WHERE id_group = {int:current_group}
			LIMIT {int:limit}',
			array(
				'current_group' => $group_id,
				'limit' => 1,
			)
		);
		list ($is_protected) = $smcFunc['db_fetch_row']($request);
		$smcFunc['db_free_result']($request);

		if ($is_protected == 1)
			isAllowedTo('admin_forum');
	}

	// What ever we are doing, we need to determine if changing primary is possible!
	$request = $smcFunc['db_query']('', '
		SELECT id_group, group_type, hidden, group_name
		FROM {db_prefix}membergroups
		WHERE id_group IN ({int:group_list}, {int:current_group})',
		array(
			'group_list' => $group_id,
			'current_group' => $old_profile['id_group'],
		)
	);
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		// Is this the new group?
		if ($row['id_group'] == $group_id)
		{
			$foundTarget = true;
			$group_name = $row['group_name'];

			// Does the group type match what we're doing - are we trying to request a non-requestable group?
			if ($changeType == 'request' && $row['group_type'] != 2)
				fatal_lang_error('no_access', false);
			// What about leaving a requestable group we are not a member of?
			elseif ($changeType == 'free' && $row['group_type'] == 2 && $old_profile['id_group'] != $row['id_group'] && !isset($addGroups[$row['id_group']]))
				fatal_lang_error('no_access', false);
			elseif ($changeType == 'free' && $row['group_type'] != 3 && $row['group_type'] != 2)
				fatal_lang_error('no_access', false);

			// We can't change the primary group if this is hidden!
			if ($row['hidden'] == 2)
				$canChangePrimary = false;
		}

		// If this is their old primary, can we change it?
		if ($row['id_group'] == $old_profile['id_group'] && ($row['group_type'] > 1 || $context['can_manage_membergroups']) && $canChangePrimary !== false)
			$canChangePrimary = 1;

		// If we are not doing a force primary move, don't do it automatically if current primary is not 0.
		if ($changeType != 'primary' && $old_profile['id_group'] != 0)
			$canChangePrimary = false;

		// If this is the one we are acting on, can we even act?
		if ((!$context['can_manage_protected'] && $row['group_type'] == 1) || (!$context['can_manage_membergroups'] && $row['group_type'] == 0))
			$canChangePrimary = false;
	}
	$smcFunc['db_free_result']($request);

	// Didn't find the target?
	if (!$foundTarget)
		fatal_lang_error('no_access', false);

	// Final security check, don't allow users to promote themselves to admin.
	if ($context['can_manage_membergroups'] && !allowedTo('admin_forum'))
	{
		$request = $smcFunc['db_query']('', '
			SELECT COUNT(permission)
			FROM {db_prefix}permissions
			WHERE id_group = {int:selected_group}
				AND permission = {string:admin_forum}
				AND add_deny = {int:not_denied}',
			array(
				'selected_group' => $group_id,
				'not_denied' => 1,
				'admin_forum' => 'admin_forum',
			)
		);
		list ($disallow) = $smcFunc['db_fetch_row']($request);
		$smcFunc['db_free_result']($request);

		if ($disallow)
			isAllowedTo('admin_forum');
	}

	// If we're requesting, add the note then return.
	if ($changeType == 'request')
	{
		$request = $smcFunc['db_query']('', '
			SELECT id_member
			FROM {db_prefix}log_group_requests
			WHERE id_member = {int:selected_member}
				AND id_group = {int:selected_group}
				AND status = {int:status_open}',
			array(
				'selected_member' => $memID,
				'selected_group' => $group_id,
				'status_open' => 0,
			)
		);
		if ($smcFunc['db_num_rows']($request) != 0)
			fatal_lang_error('profile_error_already_requested_group');
		$smcFunc['db_free_result']($request);

		// Log the request.
		$smcFunc['db_insert']('',
			'{db_prefix}log_group_requests',
			array(
				'id_member' => 'int', 'id_group' => 'int', 'time_applied' => 'int', 'reason' => 'string-65534',
				'status' => 'int', 'id_member_acted' => 'int', 'member_name_acted' => 'string', 'time_acted' => 'int', 'act_reason' => 'string',
			),
			array(
				$memID, $group_id, time(), $_POST['reason'],
				0, 0, '', 0, '',
			),
			array('id_request')
		);

		// Set up some data for our background task...
		$data = $smcFunc['json_encode'](array('id_member' => $memID, 'member_name' => $user_info['name'], 'id_group' => $group_id, 'group_name' => $group_name, 'reason' => $_POST['reason'], 'time' => time()));

		// Add a background task to handle notifying people of this request
		$smcFunc['db_insert']('insert', '{db_prefix}background_tasks',
			array('task_file' => 'string-255', 'task_class' => 'string-255', 'task_data' => 'string', 'claimed_time' => 'int'),
			array('$sourcedir/tasks/GroupReq-Notify.php', 'GroupReq_Notify_Background', $data, 0), array()
		);

		return $changeType;
	}
	// Otherwise we are leaving/joining a group.
	elseif ($changeType == 'free')
	{
		// Are we leaving?
		if ($old_profile['id_group'] == $group_id || isset($addGroups[$group_id]))
		{
			if ($old_profile['id_group'] == $group_id)
				$newPrimary = 0;
			else
				unset($addGroups[$group_id]);
		}
		// ... if not, must be joining.
		else
		{
			// Can we change the primary, and do we want to?
			if ($canChangePrimary)
			{
				if ($old_profile['id_group'] != 0)
					$addGroups[$old_profile['id_group']] = -1;
				$newPrimary = $group_id;
			}
			// Otherwise it's an additional group...
			else
				$addGroups[$group_id] = -1;
		}
	}
	// Finally, we must be setting the primary.
	elseif ($canChangePrimary)
	{
		if ($old_profile['id_group'] != 0)
			$addGroups[$old_profile['id_group']] = -1;
		if (isset($addGroups[$group_id]))
			unset($addGroups[$group_id]);
		$newPrimary = $group_id;
	}

	// Finally, we can make the changes!
	foreach ($addGroups as $id => $dummy)
		if (empty($id))
			unset($addGroups[$id]);
	$addGroups = implode(',', array_flip($addGroups));

	// Ensure that we don't cache permissions if the group is changing.
	if ($context['user']['is_owner'])
		$_SESSION['mc']['time'] = 0;
	else
		updateSettings(array('settings_updated' => time()));

	updateMemberData($memID, array('id_group' => $newPrimary, 'additional_groups' => $addGroups));

	return $changeType;
}

/**
 * Provides interface to setup Two Factor Auth in SMF
 *
 * @param int $memID The ID of the member
 */
function tfasetup($memID)
{
	global $user_info, $context, $user_settings, $sourcedir, $modSettings, $smcFunc;

	require_once($sourcedir . '/Class-TOTP.php');
	require_once($sourcedir . '/Subs-Auth.php');

	// load JS lib for QR
	loadJavaScriptFile('qrcode.js', array('force_current' => false, 'validate' => true));

	// If TFA has not been setup, allow them to set it up
	if (empty($user_settings['tfa_secret']) && $context['user']['is_owner'])
	{
		// Check to ensure we're forcing SSL for authentication
		if (!empty($modSettings['force_ssl']) && empty($maintenance) && !httpsOn())
			fatal_lang_error('login_ssl_required', false);

		// In some cases (forced 2FA or backup code) they would be forced to be redirected here,
		// we do not want too much AJAX to confuse them.
		if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest' && !isset($_REQUEST['backup']) && !isset($_REQUEST['forced']))
		{
			$context['from_ajax'] = true;
			$context['template_layers'] = array();
		}

		// When the code is being sent, verify to make sure the user got it right
		if (!empty($_REQUEST['save']) && !empty($_SESSION['tfa_secret']))
		{
			$code = $_POST['tfa_code'];
			$totp = new \TOTP\Auth($_SESSION['tfa_secret']);
			$totp->setRange(1);
			$valid_code = strlen($code) == $totp->getCodeLength() && $totp->validateCode($code);

			if (empty($context['password_auth_failed']) && $valid_code)
			{
				$backup = substr(sha1($smcFunc['random_int']()), 0, 16);
				$backup_encrypted = hash_password($user_settings['member_name'], $backup);

				updateMemberData($memID, array(
					'tfa_secret' => $_SESSION['tfa_secret'],
					'tfa_backup' => $backup_encrypted,
				));

				setTFACookie(3153600, $memID, hash_salt($backup_encrypted, $user_settings['password_salt']));

				unset($_SESSION['tfa_secret']);

				$context['tfa_backup'] = $backup;
				$context['sub_template'] = 'tfasetup_backup';

				return;
			}
			else
			{
				$context['tfa_secret'] = $_SESSION['tfa_secret'];
				$context['tfa_error'] = !$valid_code;
				$context['tfa_pass_value'] = $_POST['oldpasswrd'];
				$context['tfa_value'] = $_POST['tfa_code'];
			}
		}
		else
		{
			$totp = new \TOTP\Auth();
			$secret = $totp->generateCode();
			$_SESSION['tfa_secret'] = $secret;
			$context['tfa_secret'] = $secret;
			$context['tfa_backup'] = isset($_REQUEST['backup']);
		}

		$context['tfa_qr_url'] = $totp->getQrCodeUrl($context['forum_name'] . ':' . $user_info['name'], $context['tfa_secret']);
	}
	else
		redirectexit('action=profile;area=account;u=' . $memID);
}

/**
 * Provides interface to disable two-factor authentication in SMF
 *
 * @param int $memID The ID of the member
 */
function tfadisable($memID)
{
	global $context, $modSettings, $smcFunc, $user_settings;

	if (!empty($user_settings['tfa_secret']))
	{
		// Bail if we're forcing SSL for authentication and the network connection isn't secure.
		if (!empty($modSettings['force_ssl']) && !httpsOn())
			fatal_lang_error('login_ssl_required', false);

		// The admin giveth...
		elseif ($modSettings['tfa_mode'] == 3 && $context['user']['is_owner'])
			fatal_lang_error('cannot_disable_tfa', false);
		elseif ($modSettings['tfa_mode'] == 2 && $context['user']['is_owner'])
		{
			$groups = array($user_settings['id_group']);
			if (!empty($user_settings['additional_groups']))
				$groups = array_unique(array_merge($groups, explode(',', $user_settings['additional_groups'])));

			$request = $smcFunc['db_query']('', '
				SELECT id_group
				FROM {db_prefix}membergroups
				WHERE tfa_required = {int:tfa_required}
					AND id_group IN ({array_int:groups})',
				array(
					'tfa_required' => 1,
					'groups' => $groups,
				)
			);
			$tfa_required_groups = $smcFunc['db_num_rows']($request);
			$smcFunc['db_free_result']($request);

			// They belong to a membergroup that requires tfa.
			if (!empty($tfa_required_groups))
				fatal_lang_error('cannot_disable_tfa2', false);
		}
	}
	else
		redirectexit('action=profile;area=account;u=' . $memID);
}

?>