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  • Bug fixes for general core bugs in 4.3.x will end 7 October 2024 (12 months).
  • Bug fixes for security issues in 4.3.x will end 21 April 2025 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.2.x is supported too.
/message/ -> lib.php (source)
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Library functions for messaging
 *
 * @package   core_message
 * @copyright 2008 Luis Rodrigues
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

define('MESSAGE_SHORTLENGTH', 300);

define('MESSAGE_HISTORY_ALL', 1);

define('MESSAGE_SEARCH_MAX_RESULTS', 200);

define('MESSAGE_TYPE_NOTIFICATION', 'notification');
define('MESSAGE_TYPE_MESSAGE', 'message');

/**
 * Define contants for messaging default settings population. For unambiguity of
 * plugin developer intentions we use 4-bit value (LSB numbering):
 * bit 0 - whether to send message (MESSAGE_DEFAULT_ENABLED)
 * bit 1 - Deprecated: whether to send message (MESSAGE_DEFAULT_LOGGEDOFF). Used to mean only when the user is logged off.
 * bit 2..3 - messaging permission (MESSAGE_DISALLOWED|MESSAGE_PERMITTED|MESSAGE_FORCED)
 *
 * MESSAGE_PERMITTED_MASK contains the mask we use to distinguish permission setting.
 */

 /**
  * @deprecated since Moodle 4.0. Use MESSAGE_DEFAULT_ENABLED instead.
  * @todo Remove on MDL-73284.
  */
define('MESSAGE_DEFAULT_LOGGEDIN', 0x01); // 0001

 /**
  * @deprecated since Moodle 4.0 MDL-73284. Use MESSAGE_DEFAULT_ENABLED instead.
  * @todo Remove on MDL-73284.
  */
define('MESSAGE_DEFAULT_LOGGEDOFF', 0x02); // 0010

define('MESSAGE_DEFAULT_ENABLED', 0x01); // 0001.

define('MESSAGE_DISALLOWED', 0x04); // 0100.
define('MESSAGE_PERMITTED', 0x08); // 1000.
define('MESSAGE_FORCED', 0x0c); // 1100.

define('MESSAGE_PERMITTED_MASK', 0x0c); // 1100.

/**
 * Set default value for default outputs permitted setting
 * @deprecated since Moodle 4.0 MDL-73284.
 * @todo Remove on MDL-73284.
 */
define('MESSAGE_DEFAULT_PERMITTED', 'permitted');

/**
 * Set default values for polling.
 */
define('MESSAGE_DEFAULT_MIN_POLL_IN_SECONDS', 10);
define('MESSAGE_DEFAULT_MAX_POLL_IN_SECONDS', 2 * MINSECS);
define('MESSAGE_DEFAULT_TIMEOUT_POLL_IN_SECONDS', 5 * MINSECS);

/**
 * To get only read, unread or both messages or notifications.
 */
define('MESSAGE_GET_UNREAD', 0);
define('MESSAGE_GET_READ', 1);
define('MESSAGE_GET_READ_AND_UNREAD', 2);

/**
< * Returns the count of unread messages for user. Either from a specific user or from all users. < * < * @deprecated since 3.10 < * TODO: MDL-69643 < * @param object $user1 the first user. Defaults to $USER < * @param object $user2 the second user. If null this function will count all of user 1's unread messages. < * @return int the count of $user1's unread messages < */ < function message_count_unread_messages($user1=null, $user2=null) { < global $USER, $DB; < < debugging('message_count_unread_messages is deprecated and no longer used', < DEBUG_DEVELOPER); < < if (empty($user1)) { < $user1 = $USER; < } < < $sql = "SELECT COUNT(m.id) < FROM {messages} m < INNER JOIN {message_conversations} mc < ON mc.id = m.conversationid < INNER JOIN {message_conversation_members} mcm < ON mcm.conversationid = mc.id < LEFT JOIN {message_user_actions} mua < ON (mua.messageid = m.id AND mua.userid = ? AND (mua.action = ? OR mua.action = ?)) < WHERE mua.id is NULL < AND mcm.userid = ?"; < $params = [$user1->id, \core_message\api::MESSAGE_ACTION_DELETED, \core_message\api::MESSAGE_ACTION_READ, $user1->id]; < < if (!empty($user2)) { < $sql .= " AND m.useridfrom = ?"; < $params[] = $user2->id; < } else { < $sql .= " AND m.useridfrom <> ?"; < $params[] = $user1->id; < } < < return $DB->count_records_sql($sql, $params); < } < < /**
* Try to guess how to convert the message to html. * * @access private * * @param stdClass $message * @param bool $forcetexttohtml * @return string html fragment */ function message_format_message_text($message, $forcetexttohtml = false) { // Note: this is a very nasty hack that tries to work around the weird messaging rules and design. $options = new stdClass(); $options->para = false; $options->blanktarget = true; $options->trusted = isset($message->fullmessagetrust) ? $message->fullmessagetrust : false; $format = $message->fullmessageformat; if (strval($message->smallmessage) !== '') { if (!empty($message->notification)) { if (strval($message->fullmessagehtml) !== '' or strval($message->fullmessage) !== '') { $format = FORMAT_PLAIN; } } $messagetext = $message->smallmessage; } else if ($message->fullmessageformat == FORMAT_HTML) { if (strval($message->fullmessagehtml) !== '') { $messagetext = $message->fullmessagehtml; } else { $messagetext = $message->fullmessage; $format = FORMAT_MOODLE; } } else { if (strval($message->fullmessage) !== '') { $messagetext = $message->fullmessage; } else { $messagetext = $message->fullmessagehtml; $format = FORMAT_HTML; } } if ($forcetexttohtml) { // This is a crazy hack, why not set proper format when creating the notifications? if ($format === FORMAT_PLAIN) { $format = FORMAT_MOODLE; } } return format_text($messagetext, $format, $options); } /** * Search through course users. * * If $courseids contains the site course then this function searches * through all undeleted and confirmed users. * * @param int|array $courseids Course ID or array of course IDs. * @param string $searchtext the text to search for. * @param string $sort the column name to order by. * @param string|array $exceptions comma separated list or array of user IDs to exclude. * @return array An array of {@link $USER} records. */ function message_search_users($courseids, $searchtext, $sort='', $exceptions='') { global $CFG, $USER, $DB; // Basic validation to ensure that the parameter $courseids is not an empty array or an empty value. if (!$courseids) { $courseids = array(SITEID); } // Allow an integer to be passed. if (!is_array($courseids)) { $courseids = array($courseids); } $fullname = $DB->sql_fullname(); $userfieldsapi = \core_user\fields::for_userpic(); $ufields = $userfieldsapi->get_sql('u', false, '', '', false)->selects; if (!empty($sort)) { $order = ' ORDER BY '. $sort; } else { $order = ''; } $params = array( 'userid' => $USER->id, 'userid2' => $USER->id, 'query' => "%$searchtext%" ); if (empty($exceptions)) { $exceptions = array(); } else if (!empty($exceptions) && is_string($exceptions)) { $exceptions = explode(',', $exceptions); } // Ignore self and guest account. $exceptions[] = $USER->id; $exceptions[] = $CFG->siteguest; // Exclude exceptions from the search result. list($except, $params_except) = $DB->get_in_or_equal($exceptions, SQL_PARAMS_NAMED, 'param', false); $except = ' AND u.id ' . $except; $params = array_merge($params_except, $params); if (in_array(SITEID, $courseids)) { // Search on site level. return $DB->get_records_sql("SELECT $ufields, mc.id as contactlistid, mub.id as userblockedid FROM {user} u LEFT JOIN {message_contacts} mc ON mc.contactid = u.id AND mc.userid = :userid LEFT JOIN {message_users_blocked} mub ON mub.userid = :userid2 AND mub.blockeduserid = u.id WHERE u.deleted = '0' AND u.confirmed = '1' AND (".$DB->sql_like($fullname, ':query', false).") $except $order", $params); } else { // Search in courses. // Getting the context IDs or each course. $contextids = array(); foreach ($courseids as $courseid) { $context = context_course::instance($courseid); $contextids = array_merge($contextids, $context->get_parent_context_ids(true)); } list($contextwhere, $contextparams) = $DB->get_in_or_equal(array_unique($contextids), SQL_PARAMS_NAMED, 'context'); $params = array_merge($params, $contextparams); // Everyone who has a role assignment in this course or higher. // TODO: add enabled enrolment join here (skodak) $users = $DB->get_records_sql("SELECT DISTINCT $ufields, mc.id as contactlistid, mub.id as userblockedid FROM {user} u JOIN {role_assignments} ra ON ra.userid = u.id LEFT JOIN {message_contacts} mc ON mc.contactid = u.id AND mc.userid = :userid LEFT JOIN {message_users_blocked} mub ON mub.userid = :userid2 AND mub.blockeduserid = u.id WHERE u.deleted = '0' AND u.confirmed = '1' AND (".$DB->sql_like($fullname, ':query', false).") AND ra.contextid $contextwhere $except $order", $params); return $users; } } /** * Format a message for display in the message history * * @param object $message the message object * @param string $format optional date format * @param string $keywords keywords to highlight * @param string $class CSS class to apply to the div around the message * @return string the formatted message */ function message_format_message($message, $format='', $keywords='', $class='other') { static $dateformat; //if we haven't previously set the date format or they've supplied a new one if ( empty($dateformat) || (!empty($format) && $dateformat != $format) ) { if ($format) { $dateformat = $format; } else { $dateformat = get_string('strftimedatetimeshort'); } } $time = userdate($message->timecreated, $dateformat); $messagetext = message_format_message_text($message, false); if ($keywords) { $messagetext = highlight($keywords, $messagetext); } $messagetext .= message_format_contexturl($message); $messagetext = clean_text($messagetext, FORMAT_HTML); return <<<TEMPLATE <div class='message $class'> <a name="m{$message->id}"></a> <span class="message-meta"><span class="time">$time</span></span>: <span class="text">$messagetext</span> </div> TEMPLATE; } /** * Format a the context url and context url name of a message for display * * @param object $message the message object * @return string the formatted string */ function message_format_contexturl($message) { $s = null; if (!empty($message->contexturl)) { $displaytext = null; if (!empty($message->contexturlname)) { $displaytext= $message->contexturlname; } else { $displaytext= $message->contexturl; } $s .= html_writer::start_tag('div',array('class' => 'messagecontext')); $s .= get_string('view').': '.html_writer::tag('a', $displaytext, array('href' => $message->contexturl)); $s .= html_writer::end_tag('div'); } return $s; } /** * Send a message from one user to another. Will be delivered according to the message recipients messaging preferences * * @param object $userfrom the message sender * @param object $userto the message recipient * @param string $message the message * @param int $format message format such as FORMAT_PLAIN or FORMAT_HTML * @return int|false the ID of the new message or false */ function message_post_message($userfrom, $userto, $message, $format) { global $PAGE; $eventdata = new \core\message\message(); $eventdata->courseid = 1; $eventdata->component = 'moodle'; $eventdata->name = 'instantmessage'; $eventdata->userfrom = $userfrom; $eventdata->userto = $userto; //using string manager directly so that strings in the message will be in the message recipients language rather than the senders $eventdata->subject = get_string_manager()->get_string('unreadnewmessage', 'message', fullname($userfrom), $userto->lang); if ($format == FORMAT_HTML) { $eventdata->fullmessagehtml = $message; //some message processors may revert to sending plain text even if html is supplied //so we keep both plain and html versions if we're intending to send html $eventdata->fullmessage = html_to_text($eventdata->fullmessagehtml); } else { $eventdata->fullmessage = $message; $eventdata->fullmessagehtml = ''; } $eventdata->fullmessageformat = $format; $eventdata->smallmessage = $message;//store the message unfiltered. Clean up on output. $eventdata->timecreated = time(); $eventdata->notification = 0; // User image. $userpicture = new user_picture($userfrom); $userpicture->size = 1; // Use f1 size. $userpicture->includetoken = $userto->id; // Generate an out-of-session token for the user receiving the message. $eventdata->customdata = [ 'notificationiconurl' => $userpicture->get_url($PAGE)->out(false), 'actionbuttons' => [ 'send' => get_string_manager()->get_string('send', 'message', null, $eventdata->userto->lang), ], 'placeholders' => [ 'send' => get_string_manager()->get_string('writeamessage', 'message', null, $eventdata->userto->lang), ], ]; return message_send($eventdata); } /** * Get all message processors, validate corresponding plugin existance and * system configuration * * @param bool $ready only return ready-to-use processors * @param bool $reset Reset list of message processors (used in unit tests) * @param bool $resetonly Just reset, then exit * @return mixed $processors array of objects containing information on message processors */ function get_message_processors($ready = false, $reset = false, $resetonly = false) { global $DB, $CFG; static $processors; if ($reset) { $processors = array(); if ($resetonly) { return $processors; } } if (empty($processors)) { // Get all processors, ensure the name column is the first so it will be the array key $processors = $DB->get_records('message_processors', null, 'name DESC', 'name, id, enabled'); foreach ($processors as &$processor){ $processor = \core_message\api::get_processed_processor_object($processor); } } if ($ready) { // Filter out enabled and system_configured processors $readyprocessors = $processors; foreach ($readyprocessors as $readyprocessor) { if (!($readyprocessor->enabled && $readyprocessor->configured)) { unset($readyprocessors[$readyprocessor->name]); } } return $readyprocessors; } return $processors; } /** * Get all message providers, validate their plugin existance and * system configuration * * @return mixed $processors array of objects containing information on message processors */ function get_message_providers() { global $CFG, $DB; $pluginman = core_plugin_manager::instance(); $providers = $DB->get_records('message_providers', null, 'name'); // Remove all the providers whose plugins are disabled or don't exist foreach ($providers as $providerid => $provider) { $plugin = $pluginman->get_plugin_info($provider->component); if ($plugin) { if ($plugin->get_status() === core_plugin_manager::PLUGIN_STATUS_MISSING) { unset($providers[$providerid]); // Plugins does not exist continue; } if ($plugin->is_enabled() === false) { unset($providers[$providerid]); // Plugin disabled continue; } } } return $providers; } /** * Get an instance of the message_output class for one of the output plugins. * @param string $type the message output type. E.g. 'email' or 'jabber'. * @return message_output message_output the requested class. */ function get_message_processor($type) { global $CFG; // Note, we cannot use the get_message_processors function here, becaues this // code is called during install after installing each messaging plugin, and // get_message_processors caches the list of installed plugins. $processorfile = $CFG->dirroot . "/message/output/{$type}/message_output_{$type}.php"; if (!is_readable($processorfile)) { throw new coding_exception('Unknown message processor type ' . $type); } include_once($processorfile); $processclass = 'message_output_' . $type; if (!class_exists($processclass)) { throw new coding_exception('Message processor ' . $type . ' does not define the right class'); } return new $processclass(); } /** * Get messaging outputs default (site) preferences * * @return object $processors object containing information on message processors */ function get_message_output_default_preferences() { return get_config('message'); } /** * Translate message default settings from binary value to the array of string * representing the settings to be stored. Also validate the provided value and * use default if it is malformed. * @todo Remove usage of MESSAGE_DEFAULT_LOGGEDOFF on MDL-73284. * * @param int $plugindefault Default setting suggested by plugin * @param string $processorname The name of processor * @return array $settings array of strings in the order: $locked, $enabled. */ function translate_message_default_setting($plugindefault, $processorname) { // Define the default setting. $processor = get_message_processor($processorname); $default = $processor->get_default_messaging_settings(); // Validate the value. It should not exceed the maximum size if (!is_int($plugindefault) || ($plugindefault > 0x0f)) { debugging(get_string('errortranslatingdefault', 'message')); $plugindefault = $default; } // Use plugin default setting of 'permitted' is 0 if (!($plugindefault & MESSAGE_PERMITTED_MASK)) { $plugindefault = $default; } $locked = false; $enabled = false; $permitted = $plugindefault & MESSAGE_PERMITTED_MASK; switch ($permitted) { case MESSAGE_FORCED: $locked = true; $enabled = true; break; case MESSAGE_DISALLOWED: $locked = true; $enabled = false; break; default: $locked = false; // It's equivalent to logged in. $enabled = $plugindefault & MESSAGE_DEFAULT_ENABLED == MESSAGE_DEFAULT_ENABLED; // MESSAGE_DEFAULT_LOGGEDOFF is deprecated but we're checking it just in case. $loggedoff = $plugindefault & MESSAGE_DEFAULT_LOGGEDOFF == MESSAGE_DEFAULT_LOGGEDOFF; $enabled = $enabled || $loggedoff; break; } return array($locked, $enabled); } /** * Return a list of page types * * @param string $pagetype current page type * @param context|null $parentcontext Block's parent context * @param context|null $currentcontext Current context of block * @return array */ function message_page_type_list(string $pagetype, ?context $parentcontext, ?context $currentcontext): array { return [ 'message-*' => get_string('page-message-x', 'message'), ]; } /** * Get messages sent or/and received by the specified users. * Please note that this function return deleted messages too. Besides, only individual conversation messages * are returned to maintain backwards compatibility. * * @param int $useridto the user id who received the message * @param int $useridfrom the user id who sent the message. -10 or -20 for no-reply or support user * @param int $notifications 1 for retrieving notifications, 0 for messages, -1 for both * @param int $read Either MESSAGE_GET_READ, MESSAGE_GET_UNREAD or MESSAGE_GET_READ_AND_UNREAD. * @param string $sort the column name to order by including optionally direction * @param int $limitfrom limit from * @param int $limitnum limit num * @return external_description * @since 2.8 */ function message_get_messages($useridto, $useridfrom = 0, $notifications = -1, $read = MESSAGE_GET_READ, $sort = 'mr.timecreated DESC', $limitfrom = 0, $limitnum = 0) { global $DB; if (is_bool($read)) { // Backwards compatibility, this parameter was a bool before 4.0. $read = (int) $read; } // If the 'useridto' value is empty then we are going to retrieve messages sent by the useridfrom to any user. $userfieldsapi = \core_user\fields::for_name(); if (empty($useridto)) { $userfields = $userfieldsapi->get_sql('u', false, 'userto', '', false)->selects; $messageuseridtosql = 'u.id as useridto'; } else { $userfields = $userfieldsapi->get_sql('u', false, 'userfrom', '', false)->selects; $messageuseridtosql = "$useridto as useridto"; } // Create the SQL we will be using. $messagesql = "SELECT mr.*, $userfields, 0 as notification, '' as contexturl, '' as contexturlname, mua.timecreated as timeusertodeleted, mua2.timecreated as timeread, mua3.timecreated as timeuserfromdeleted, $messageuseridtosql FROM {messages} mr INNER JOIN {message_conversations} mc ON mc.id = mr.conversationid INNER JOIN {message_conversation_members} mcm ON mcm.conversationid = mc.id "; $notificationsql = "SELECT mr.*, $userfields, 1 as notification FROM {notifications} mr "; $messagejoinsql = "LEFT JOIN {message_user_actions} mua ON (mua.messageid = mr.id AND mua.userid = mcm.userid AND mua.action = ?) LEFT JOIN {message_user_actions} mua2 ON (mua2.messageid = mr.id AND mua2.userid = mcm.userid AND mua2.action = ?) LEFT JOIN {message_user_actions} mua3 ON (mua3.messageid = mr.id AND mua3.userid = mr.useridfrom AND mua3.action = ?)"; $messagejoinparams = [\core_message\api::MESSAGE_ACTION_DELETED, \core_message\api::MESSAGE_ACTION_READ, \core_message\api::MESSAGE_ACTION_DELETED]; $notificationsparams = []; // If the 'useridto' value is empty then we are going to retrieve messages sent by the useridfrom to any user. if (empty($useridto)) { // Create the messaging query and params. $messagesql .= "INNER JOIN {user} u ON u.id = mcm.userid $messagejoinsql WHERE mr.useridfrom = ? AND mr.useridfrom != mcm.userid AND u.deleted = 0 AND mc.type = ? "; $messageparams = array_merge($messagejoinparams, [$useridfrom, \core_message\api::MESSAGE_CONVERSATION_TYPE_INDIVIDUAL]); // Create the notifications query and params. $notificationsql .= "INNER JOIN {user} u ON u.id = mr.useridto WHERE mr.useridfrom = ? AND u.deleted = 0 "; $notificationsparams[] = $useridfrom; } else { // Create the messaging query and params. // Left join because useridfrom may be -10 or -20 (no-reply and support users). $messagesql .= "LEFT JOIN {user} u ON u.id = mr.useridfrom $messagejoinsql WHERE mcm.userid = ? AND mr.useridfrom != mcm.userid AND u.deleted = 0 AND mc.type = ? "; $messageparams = array_merge($messagejoinparams, [$useridto, \core_message\api::MESSAGE_CONVERSATION_TYPE_INDIVIDUAL]); // If we're dealing with messages only and both useridto and useridfrom are set, // try to get a conversation between the users. Break early if we can't find one. if (!empty($useridfrom) && $notifications == 0) { $messagesql .= " AND mr.useridfrom = ? "; $messageparams[] = $useridfrom; // There should be an individual conversation between the users. If not, we can return early. $conversationid = \core_message\api::get_conversation_between_users([$useridto, $useridfrom]); if (empty($conversationid)) { return []; } $messagesql .= " AND mc.id = ? "; $messageparams[] = $conversationid; } // Create the notifications query and params. // Left join because useridfrom may be -10 or -20 (no-reply and support users). $notificationsql .= "LEFT JOIN {user} u ON (u.id = mr.useridfrom AND u.deleted = 0) WHERE mr.useridto = ? "; $notificationsparams[] = $useridto; if (!empty($useridfrom)) { $notificationsql .= " AND mr.useridfrom = ? "; $notificationsparams[] = $useridfrom; } } if ($read === MESSAGE_GET_READ) { $notificationsql .= "AND mr.timeread IS NOT NULL "; } else if ($read === MESSAGE_GET_UNREAD) { $notificationsql .= "AND mr.timeread IS NULL "; } $messagesql .= "ORDER BY $sort"; $notificationsql .= "ORDER BY $sort"; // Handle messages if needed. if ($notifications === -1 || $notifications === 0) { $messages = $DB->get_records_sql($messagesql, $messageparams, $limitfrom, $limitnum); if ($read !== MESSAGE_GET_READ_AND_UNREAD) { // Get rid of the messages that have either been read or not read depending on the value of $read. $messages = array_filter($messages, function ($message) use ($read) { if ($read === MESSAGE_GET_READ) { return !is_null($message->timeread); } return is_null($message->timeread); }); } } // All. if ($notifications === -1) { return array_merge($messages, $DB->get_records_sql($notificationsql, $notificationsparams, $limitfrom, $limitnum)); } else if ($notifications === 1) { // Just notifications. return $DB->get_records_sql($notificationsql, $notificationsparams, $limitfrom, $limitnum); } // Just messages. return $messages; } /** * Handles displaying processor settings in a fragment. * * @param array $args * @return bool|string * @throws moodle_exception */ function message_output_fragment_processor_settings($args = []) { global $PAGE; if (!isset($args['type'])) { throw new moodle_exception('Must provide a processor type'); } if (!isset($args['userid'])) { throw new moodle_exception('Must provide a userid'); } $type = clean_param($args['type'], PARAM_SAFEDIR); $userid = clean_param($args['userid'], PARAM_INT); $user = core_user::get_user($userid, '*', MUST_EXIST); if (!core_message_can_edit_message_profile($user)) { throw new moodle_exception('Cannot edit message profile'); } $processor = get_message_processor($type); $providers = message_get_providers_for_user($userid); $processorwrapper = new stdClass(); $processorwrapper->object = $processor; $preferences = \core_message\api::get_all_message_preferences([$processorwrapper], $providers, $user); $processoroutput = new \core_message\output\preferences\processor($processor, $preferences, $user, $type); $renderer = $PAGE->get_renderer('core', 'message'); return $renderer->render_from_template('core_message/preferences_processor', $processoroutput->export_for_template($renderer)); } /** * Checks if current user is allowed to edit messaging preferences of another user * * @param stdClass $user user whose preferences we are updating * @return bool */ function core_message_can_edit_message_profile($user) { global $USER; if ($user->id == $USER->id) { return has_capability('moodle/user:editownmessageprofile', context_system::instance()); } else { $personalcontext = context_user::instance($user->id); if (!has_capability('moodle/user:editmessageprofile', $personalcontext)) { return false; } if (isguestuser($user)) { return false; } // No editing of admins by non-admins. if (is_siteadmin($user) and !is_siteadmin($USER)) { return false; } return true; } } /** * Implements callback user_preferences, lists preferences that users are allowed to update directly * * Used in {@see core_user::fill_preferences_cache()}, see also {@see useredit_update_user_preference()} * * @return array */ function core_message_user_preferences() { $preferences = []; $preferences['message_blocknoncontacts'] = array( 'type' => PARAM_INT, 'null' => NULL_NOT_ALLOWED, 'default' => 0, 'choices' => array( \core_message\api::MESSAGE_PRIVACY_ONLYCONTACTS, \core_message\api::MESSAGE_PRIVACY_COURSEMEMBER, \core_message\api::MESSAGE_PRIVACY_SITE ), 'cleancallback' => function ($value) { global $CFG; // When site-wide messaging between users is disabled, MESSAGE_PRIVACY_SITE should be converted. if (empty($CFG->messagingallusers) && $value === \core_message\api::MESSAGE_PRIVACY_SITE) { return \core_message\api::MESSAGE_PRIVACY_COURSEMEMBER; } return $value; } ); $preferences['message_entertosend'] = array( 'type' => PARAM_BOOL, 'null' => NULL_NOT_ALLOWED, 'default' => false ); $preferences['/^message_provider_([\w\d_]*)_enabled$/'] = array('isregex' => true, 'type' => PARAM_NOTAGS, 'null' => NULL_NOT_ALLOWED, 'default' => 'none', 'permissioncallback' => function ($user, $preferencename) { global $CFG; require_once($CFG->libdir.'/messagelib.php'); if (core_message_can_edit_message_profile($user) && preg_match('/^message_provider_([\w\d_]*)_enabled$/', $preferencename, $matches)) { $providers = message_get_providers_for_user($user->id); foreach ($providers as $provider) { if ($matches[1] === $provider->component . '_' . $provider->name) { return true; } } } return false; }, 'cleancallback' => function ($value, $preferencename) { if ($value === 'none' || empty($value)) { return 'none'; } $parts = explode('/,/', $value); $processors = array_keys(get_message_processors()); array_filter($parts, function($v) use ($processors) {return in_array($v, $processors);}); return $parts ? join(',', $parts) : 'none'; }); return $preferences; } /** * Render the message drawer to be included in the top of the body of each page. * * @return string HTML */ function core_message_standard_after_main_region_html() { return \core_message\helper::render_messaging_widget(true, null, null); }