File: /home/mbp/domains/mbp.ac.th/public_html/biology/message/externallib.php
<?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/>.
/**
* External message API
*
* @package core_message
* @category external
* @copyright 2011 Jerome Mouneyrac
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once("$CFG->libdir/externallib.php");
require_once($CFG->dirroot . "/message/lib.php");
/**
* Message external functions
*
* @package core_message
* @category external
* @copyright 2011 Jerome Mouneyrac
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.2
*/
class core_message_external extends external_api {
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 2.2
*/
public static function send_instant_messages_parameters() {
return new external_function_parameters(
array(
'messages' => new external_multiple_structure(
new external_single_structure(
array(
'touserid' => new external_value(PARAM_INT, 'id of the user to send the private message'),
'text' => new external_value(PARAM_RAW, 'the text of the message'),
'textformat' => new external_format_value('text', VALUE_DEFAULT),
'clientmsgid' => new external_value(PARAM_ALPHANUMEXT, 'your own client id for the message. If this id is provided, the fail message id will be returned to you', VALUE_OPTIONAL),
)
)
)
)
);
}
/**
* Send private messages from the current USER to other users
*
* @param array $messages An array of message to send.
* @return array
* @since Moodle 2.2
*/
public static function send_instant_messages($messages = array()) {
global $CFG, $USER, $DB;
// Check if messaging is enabled.
if (!$CFG->messaging) {
throw new moodle_exception('disabled', 'message');
}
// Ensure the current user is allowed to run this function
$context = context_system::instance();
self::validate_context($context);
require_capability('moodle/site:sendmessage', $context);
$params = self::validate_parameters(self::send_instant_messages_parameters(), array('messages' => $messages));
//retrieve all tousers of the messages
$receivers = array();
foreach($params['messages'] as $message) {
$receivers[] = $message['touserid'];
}
list($sqluserids, $sqlparams) = $DB->get_in_or_equal($receivers, SQL_PARAMS_NAMED, 'userid_');
$tousers = $DB->get_records_select("user", "id " . $sqluserids . " AND deleted = 0", $sqlparams);
$blocklist = array();
$contactlist = array();
$sqlparams['contactid'] = $USER->id;
$rs = $DB->get_recordset_sql("SELECT *
FROM {message_contacts}
WHERE userid $sqluserids
AND contactid = :contactid", $sqlparams);
foreach ($rs as $record) {
if ($record->blocked) {
// $record->userid is blocking current user
$blocklist[$record->userid] = true;
} else {
// $record->userid have current user as contact
$contactlist[$record->userid] = true;
}
}
$rs->close();
$canreadallmessages = has_capability('moodle/site:readallmessages', $context);
$resultmessages = array();
foreach ($params['messages'] as $message) {
$resultmsg = array(); //the infos about the success of the operation
//we are going to do some checking
//code should match /messages/index.php checks
$success = true;
//check the user exists
if (empty($tousers[$message['touserid']])) {
$success = false;
$errormessage = get_string('touserdoesntexist', 'message', $message['touserid']);
}
//check that the touser is not blocking the current user
if ($success and !empty($blocklist[$message['touserid']]) and !$canreadallmessages) {
$success = false;
$errormessage = get_string('userisblockingyou', 'message');
}
// Check if the user is a contact
//TODO MDL-31118 performance improvement - edit the function so we can pass an array instead userid
$blocknoncontacts = get_user_preferences('message_blocknoncontacts', NULL, $message['touserid']);
// message_blocknoncontacts option is on and current user is not in contact list
if ($success && empty($contactlist[$message['touserid']]) && !empty($blocknoncontacts)) {
// The user isn't a contact and they have selected to block non contacts so this message won't be sent.
$success = false;
$errormessage = get_string('userisblockingyounoncontact', 'message',
fullname(core_user::get_user($message['touserid'])));
}
//now we can send the message (at least try)
if ($success) {
//TODO MDL-31118 performance improvement - edit the function so we can pass an array instead one touser object
$success = message_post_message($USER, $tousers[$message['touserid']],
$message['text'], external_validate_format($message['textformat']));
}
//build the resultmsg
if (isset($message['clientmsgid'])) {
$resultmsg['clientmsgid'] = $message['clientmsgid'];
}
if ($success) {
$resultmsg['msgid'] = $success;
} else {
// WARNINGS: for backward compatibility we return this errormessage.
// We should have thrown exceptions as these errors prevent results to be returned.
// See http://docs.moodle.org/dev/Errors_handling_in_web_services#When_to_send_a_warning_on_the_server_side .
$resultmsg['msgid'] = -1;
$resultmsg['errormessage'] = $errormessage;
}
$resultmessages[] = $resultmsg;
}
return $resultmessages;
}
/**
* Returns description of method result value
*
* @return external_description
* @since Moodle 2.2
*/
public static function send_instant_messages_returns() {
return new external_multiple_structure(
new external_single_structure(
array(
'msgid' => new external_value(PARAM_INT, 'test this to know if it succeeds: id of the created message if it succeeded, -1 when failed'),
'clientmsgid' => new external_value(PARAM_ALPHANUMEXT, 'your own id for the message', VALUE_OPTIONAL),
'errormessage' => new external_value(PARAM_TEXT, 'error message - if it failed', VALUE_OPTIONAL)
)
)
);
}
/**
* Create contacts parameters description.
*
* @return external_function_parameters
* @since Moodle 2.5
*/
public static function create_contacts_parameters() {
return new external_function_parameters(
array(
'userids' => new external_multiple_structure(
new external_value(PARAM_INT, 'User ID'),
'List of user IDs'
)
)
);
}
/**
* Create contacts.
*
* @param array $userids array of user IDs.
* @return external_description
* @since Moodle 2.5
*/
public static function create_contacts($userids) {
global $CFG;
// Check if messaging is enabled.
if (!$CFG->messaging) {
throw new moodle_exception('disabled', 'message');
}
$params = array('userids' => $userids);
$params = self::validate_parameters(self::create_contacts_parameters(), $params);
$warnings = array();
foreach ($params['userids'] as $id) {
if (!message_add_contact($id)) {
$warnings[] = array(
'item' => 'user',
'itemid' => $id,
'warningcode' => 'contactnotcreated',
'message' => 'The contact could not be created'
);
}
}
return $warnings;
}
/**
* Create contacts return description.
*
* @return external_description
* @since Moodle 2.5
*/
public static function create_contacts_returns() {
return new external_warnings();
}
/**
* Delete contacts parameters description.
*
* @return external_function_parameters
* @since Moodle 2.5
*/
public static function delete_contacts_parameters() {
return new external_function_parameters(
array(
'userids' => new external_multiple_structure(
new external_value(PARAM_INT, 'User ID'),
'List of user IDs'
)
)
);
}
/**
* Delete contacts.
*
* @param array $userids array of user IDs.
* @return null
* @since Moodle 2.5
*/
public static function delete_contacts($userids) {
global $CFG;
// Check if messaging is enabled.
if (!$CFG->messaging) {
throw new moodle_exception('disabled', 'message');
}
$params = array('userids' => $userids);
$params = self::validate_parameters(self::delete_contacts_parameters(), $params);
foreach ($params['userids'] as $id) {
message_remove_contact($id);
}
return null;
}
/**
* Delete contacts return description.
*
* @return external_description
* @since Moodle 2.5
*/
public static function delete_contacts_returns() {
return null;
}
/**
* Block contacts parameters description.
*
* @return external_function_parameters
* @since Moodle 2.5
*/
public static function block_contacts_parameters() {
return new external_function_parameters(
array(
'userids' => new external_multiple_structure(
new external_value(PARAM_INT, 'User ID'),
'List of user IDs'
)
)
);
}
/**
* Block contacts.
*
* @param array $userids array of user IDs.
* @return external_description
* @since Moodle 2.5
*/
public static function block_contacts($userids) {
global $CFG;
// Check if messaging is enabled.
if (!$CFG->messaging) {
throw new moodle_exception('disabled', 'message');
}
$params = array('userids' => $userids);
$params = self::validate_parameters(self::block_contacts_parameters(), $params);
$warnings = array();
foreach ($params['userids'] as $id) {
if (!message_block_contact($id)) {
$warnings[] = array(
'item' => 'user',
'itemid' => $id,
'warningcode' => 'contactnotblocked',
'message' => 'The contact could not be blocked'
);
}
}
return $warnings;
}
/**
* Block contacts return description.
*
* @return external_description
* @since Moodle 2.5
*/
public static function block_contacts_returns() {
return new external_warnings();
}
/**
* Unblock contacts parameters description.
*
* @return external_function_parameters
* @since Moodle 2.5
*/
public static function unblock_contacts_parameters() {
return new external_function_parameters(
array(
'userids' => new external_multiple_structure(
new external_value(PARAM_INT, 'User ID'),
'List of user IDs'
)
)
);
}
/**
* Unblock contacts.
*
* @param array $userids array of user IDs.
* @return null
* @since Moodle 2.5
*/
public static function unblock_contacts($userids) {
global $CFG;
// Check if messaging is enabled.
if (!$CFG->messaging) {
throw new moodle_exception('disabled', 'message');
}
$params = array('userids' => $userids);
$params = self::validate_parameters(self::unblock_contacts_parameters(), $params);
foreach ($params['userids'] as $id) {
message_unblock_contact($id);
}
return null;
}
/**
* Unblock contacts return description.
*
* @return external_description
* @since Moodle 2.5
*/
public static function unblock_contacts_returns() {
return null;
}
/**
* Get contacts parameters description.
*
* @return external_function_parameters
* @since Moodle 2.5
*/
public static function get_contacts_parameters() {
return new external_function_parameters(array());
}
/**
* Get contacts.
*
* @param array $userids array of user IDs.
* @return external_description
* @since Moodle 2.5
*/
public static function get_contacts() {
global $CFG, $PAGE;
// Check if messaging is enabled.
if (!$CFG->messaging) {
throw new moodle_exception('disabled', 'message');
}
require_once($CFG->dirroot . '/user/lib.php');
list($online, $offline, $strangers) = message_get_contacts();
$allcontacts = array('online' => $online, 'offline' => $offline, 'strangers' => $strangers);
foreach ($allcontacts as $mode => $contacts) {
foreach ($contacts as $key => $contact) {
$newcontact = array(
'id' => $contact->id,
'fullname' => fullname($contact),
'unread' => $contact->messagecount
);
$userpicture = new user_picture($contact);
$userpicture->size = 1; // Size f1.
$newcontact['profileimageurl'] = $userpicture->get_url($PAGE)->out(false);
$userpicture->size = 0; // Size f2.
$newcontact['profileimageurlsmall'] = $userpicture->get_url($PAGE)->out(false);
$allcontacts[$mode][$key] = $newcontact;
}
}
return $allcontacts;
}
/**
* Get contacts return description.
*
* @return external_description
* @since Moodle 2.5
*/
public static function get_contacts_returns() {
return new external_single_structure(
array(
'online' => new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'User ID'),
'fullname' => new external_value(PARAM_NOTAGS, 'User full name'),
'profileimageurl' => new external_value(PARAM_URL, 'User picture URL', VALUE_OPTIONAL),
'profileimageurlsmall' => new external_value(PARAM_URL, 'Small user picture URL', VALUE_OPTIONAL),
'unread' => new external_value(PARAM_INT, 'Unread message count')
)
),
'List of online contacts'
),
'offline' => new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'User ID'),
'fullname' => new external_value(PARAM_NOTAGS, 'User full name'),
'profileimageurl' => new external_value(PARAM_URL, 'User picture URL', VALUE_OPTIONAL),
'profileimageurlsmall' => new external_value(PARAM_URL, 'Small user picture URL', VALUE_OPTIONAL),
'unread' => new external_value(PARAM_INT, 'Unread message count')
)
),
'List of offline contacts'
),
'strangers' => new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'User ID'),
'fullname' => new external_value(PARAM_NOTAGS, 'User full name'),
'profileimageurl' => new external_value(PARAM_URL, 'User picture URL', VALUE_OPTIONAL),
'profileimageurlsmall' => new external_value(PARAM_URL, 'Small user picture URL', VALUE_OPTIONAL),
'unread' => new external_value(PARAM_INT, 'Unread message count')
)
),
'List of users that are not in the user\'s contact list but have sent a message'
)
)
);
}
/**
* Search contacts parameters description.
*
* @return external_function_parameters
* @since Moodle 2.5
*/
public static function search_contacts_parameters() {
return new external_function_parameters(
array(
'searchtext' => new external_value(PARAM_CLEAN, 'String the user\'s fullname has to match to be found'),
'onlymycourses' => new external_value(PARAM_BOOL, 'Limit search to the user\'s courses',
VALUE_DEFAULT, false)
)
);
}
/**
* Search contacts.
*
* @param string $searchtext query string.
* @param bool $onlymycourses limit the search to the user's courses only.
* @return external_description
* @since Moodle 2.5
*/
public static function search_contacts($searchtext, $onlymycourses = false) {
global $CFG, $USER, $PAGE;
require_once($CFG->dirroot . '/user/lib.php');
// Check if messaging is enabled.
if (!$CFG->messaging) {
throw new moodle_exception('disabled', 'message');
}
require_once($CFG->libdir . '/enrollib.php');
$params = array('searchtext' => $searchtext, 'onlymycourses' => $onlymycourses);
$params = self::validate_parameters(self::search_contacts_parameters(), $params);
// Extra validation, we do not allow empty queries.
if ($params['searchtext'] === '') {
throw new moodle_exception('querystringcannotbeempty');
}
$courseids = array();
if ($params['onlymycourses']) {
$mycourses = enrol_get_my_courses(array('id'));
foreach ($mycourses as $mycourse) {
$courseids[] = $mycourse->id;
}
} else {
$courseids[] = SITEID;
}
// Retrieving the users matching the query.
$users = message_search_users($courseids, $params['searchtext']);
$results = array();
foreach ($users as $user) {
$results[$user->id] = $user;
}
// Reorganising information.
foreach ($results as &$user) {
$newuser = array(
'id' => $user->id,
'fullname' => fullname($user)
);
// Avoid undefined property notice as phone not specified.
$user->phone1 = null;
$user->phone2 = null;
$userpicture = new user_picture($user);
$userpicture->size = 1; // Size f1.
$newuser['profileimageurl'] = $userpicture->get_url($PAGE)->out(false);
$userpicture->size = 0; // Size f2.
$newuser['profileimageurlsmall'] = $userpicture->get_url($PAGE)->out(false);
$user = $newuser;
}
return $results;
}
/**
* Search contacts return description.
*
* @return external_description
* @since Moodle 2.5
*/
public static function search_contacts_returns() {
return new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'User ID'),
'fullname' => new external_value(PARAM_NOTAGS, 'User full name'),
'profileimageurl' => new external_value(PARAM_URL, 'User picture URL', VALUE_OPTIONAL),
'profileimageurlsmall' => new external_value(PARAM_URL, 'Small user picture URL', VALUE_OPTIONAL)
)
),
'List of contacts'
);
}
/**
* Get messages parameters description.
*
* @return external_function_parameters
* @since 2.8
*/
public static function get_messages_parameters() {
return new external_function_parameters(
array(
'useridto' => new external_value(PARAM_INT, 'the user id who received the message, 0 for any user', VALUE_REQUIRED),
'useridfrom' => new external_value(
PARAM_INT, 'the user id who send the message, 0 for any user. -10 or -20 for no-reply or support user',
VALUE_DEFAULT, 0),
'type' => new external_value(
PARAM_ALPHA, 'type of message to return, expected values are: notifications, conversations and both',
VALUE_DEFAULT, 'both'),
'read' => new external_value(PARAM_BOOL, 'true for getting read messages, false for unread', VALUE_DEFAULT, true),
'newestfirst' => new external_value(
PARAM_BOOL, 'true for ordering by newest first, false for oldest first',
VALUE_DEFAULT, true),
'limitfrom' => new external_value(PARAM_INT, 'limit from', VALUE_DEFAULT, 0),
'limitnum' => new external_value(PARAM_INT, 'limit number', VALUE_DEFAULT, 0)
)
);
}
/**
* Get messages function implementation.
*
* @since 2.8
* @throws invalid_parameter_exception
* @throws moodle_exception
* @param int $useridto the user id who received the message
* @param int $useridfrom the user id who send the message. -10 or -20 for no-reply or support user
* @param string $type type of message to return, expected values: notifications, conversations and both
* @param bool $read true for retreiving read messages, false for unread
* @param bool $newestfirst true for ordering by newest first, false for oldest first
* @param int $limitfrom limit from
* @param int $limitnum limit num
* @return external_description
*/
public static function get_messages($useridto, $useridfrom = 0, $type = 'both', $read = true,
$newestfirst = true, $limitfrom = 0, $limitnum = 0) {
global $CFG, $USER;
$warnings = array();
$params = array(
'useridto' => $useridto,
'useridfrom' => $useridfrom,
'type' => $type,
'read' => $read,
'newestfirst' => $newestfirst,
'limitfrom' => $limitfrom,
'limitnum' => $limitnum
);
$params = self::validate_parameters(self::get_messages_parameters(), $params);
$context = context_system::instance();
self::validate_context($context);
$useridto = $params['useridto'];
$useridfrom = $params['useridfrom'];
$type = $params['type'];
$read = $params['read'];
$newestfirst = $params['newestfirst'];
$limitfrom = $params['limitfrom'];
$limitnum = $params['limitnum'];
$allowedvalues = array('notifications', 'conversations', 'both');
if (!in_array($type, $allowedvalues)) {
throw new invalid_parameter_exception('Invalid value for type parameter (value: ' . $type . '),' .
'allowed values are: ' . implode(',', $allowedvalues));
}
// Check if private messaging between users is allowed.
if (empty($CFG->messaging)) {
// If we are retreiving only conversations, and messaging is disabled, throw an exception.
if ($type == "conversations") {
throw new moodle_exception('disabled', 'message');
}
if ($type == "both") {
$warning = array();
$warning['item'] = 'message';
$warning['itemid'] = $USER->id;
$warning['warningcode'] = '1';
$warning['message'] = 'Private messages (conversations) are not enabled in this site.
Only notifications will be returned';
$warnings[] = $warning;
}
}
if (!empty($useridto)) {
if (core_user::is_real_user($useridto)) {
$userto = core_user::get_user($useridto, '*', MUST_EXIST);
} else {
throw new moodle_exception('invaliduser');
}
}
if (!empty($useridfrom)) {
// We use get_user here because the from user can be the noreply or support user.
$userfrom = core_user::get_user($useridfrom, '*', MUST_EXIST);
}
// Check if the current user is the sender/receiver or just a privileged user.
if ($useridto != $USER->id and $useridfrom != $USER->id and
!has_capability('moodle/site:readallmessages', $context)) {
throw new moodle_exception('accessdenied', 'admin');
}
// Which type of messages to retrieve.
$notifications = -1;
if ($type != 'both') {
$notifications = ($type == 'notifications') ? 1 : 0;
}
$orderdirection = $newestfirst ? 'DESC' : 'ASC';
$sort = "mr.timecreated $orderdirection";
if ($messages = message_get_messages($useridto, $useridfrom, $notifications, $read, $sort, $limitfrom, $limitnum)) {
$canviewfullname = has_capability('moodle/site:viewfullnames', $context);
// In some cases, we don't need to get the to/from user objects from the sql query.
$userfromfullname = '';
$usertofullname = '';
// In this case, the useridto field is not empty, so we can get the user destinatary fullname from there.
if (!empty($useridto)) {
$usertofullname = fullname($userto, $canviewfullname);
// The user from may or may not be filled.
if (!empty($useridfrom)) {
$userfromfullname = fullname($userfrom, $canviewfullname);
}
} else {
// If the useridto field is empty, the useridfrom must be filled.
$userfromfullname = fullname($userfrom, $canviewfullname);
}
foreach ($messages as $mid => $message) {
// Do not return deleted messages.
if (($useridto == $USER->id and $message->timeusertodeleted) or
($useridfrom == $USER->id and $message->timeuserfromdeleted)) {
unset($messages[$mid]);
continue;
}
// We need to get the user from the query.
if (empty($userfromfullname)) {
// Check for non-reply and support users.
if (core_user::is_real_user($message->useridfrom)) {
$user = new stdClass();
$user = username_load_fields_from_object($user, $message, 'userfrom');
$message->userfromfullname = fullname($user, $canviewfullname);
} else {
$user = core_user::get_user($message->useridfrom);
$message->userfromfullname = fullname($user, $canviewfullname);
}
} else {
$message->userfromfullname = $userfromfullname;
}
// We need to get the user from the query.
if (empty($usertofullname)) {
$user = new stdClass();
$user = username_load_fields_from_object($user, $message, 'userto');
$message->usertofullname = fullname($user, $canviewfullname);
} else {
$message->usertofullname = $usertofullname;
}
// This field is only available in the message_read table.
if (!isset($message->timeread)) {
$message->timeread = 0;
}
$message->text = message_format_message_text($message);
$messages[$mid] = (array) $message;
}
}
$results = array(
'messages' => $messages,
'warnings' => $warnings
);
return $results;
}
/**
* Get messages return description.
*
* @return external_single_structure
* @since 2.8
*/
public static function get_messages_returns() {
return new external_single_structure(
array(
'messages' => new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'Message id'),
'useridfrom' => new external_value(PARAM_INT, 'User from id'),
'useridto' => new external_value(PARAM_INT, 'User to id'),
'subject' => new external_value(PARAM_TEXT, 'The message subject'),
'text' => new external_value(PARAM_RAW, 'The message text formated'),
'fullmessage' => new external_value(PARAM_RAW, 'The message'),
'fullmessageformat' => new external_format_value('fullmessage'),
'fullmessagehtml' => new external_value(PARAM_RAW, 'The message in html'),
'smallmessage' => new external_value(PARAM_RAW, 'The shorten message'),
'notification' => new external_value(PARAM_INT, 'Is a notification?'),
'contexturl' => new external_value(PARAM_RAW, 'Context URL'),
'contexturlname' => new external_value(PARAM_TEXT, 'Context URL link name'),
'timecreated' => new external_value(PARAM_INT, 'Time created'),
'timeread' => new external_value(PARAM_INT, 'Time read'),
'usertofullname' => new external_value(PARAM_TEXT, 'User to full name'),
'userfromfullname' => new external_value(PARAM_TEXT, 'User from full name')
), 'message'
)
),
'warnings' => new external_warnings()
)
);
}
/**
* Get blocked users parameters description.
*
* @return external_function_parameters
* @since 2.9
*/
public static function get_blocked_users_parameters() {
return new external_function_parameters(
array(
'userid' => new external_value(PARAM_INT,
'the user whose blocked users we want to retrieve',
VALUE_REQUIRED),
)
);
}
/**
* Retrieve a list of users blocked
*
* @param int $userid the user whose blocked users we want to retrieve
* @return external_description
* @since 2.9
*/
public static function get_blocked_users($userid) {
global $CFG, $USER, $PAGE;
// Warnings array, it can be empty at the end but is mandatory.
$warnings = array();
// Validate params.
$params = array(
'userid' => $userid
);
$params = self::validate_parameters(self::get_blocked_users_parameters(), $params);
$userid = $params['userid'];
// Validate context.
$context = context_system::instance();
self::validate_context($context);
// Check if private messaging between users is allowed.
if (empty($CFG->messaging)) {
throw new moodle_exception('disabled', 'message');
}
$user = core_user::get_user($userid, '*', MUST_EXIST);
core_user::require_active_user($user);
// Check if we have permissions for retrieve the information.
if ($userid != $USER->id and !has_capability('moodle/site:readallmessages', $context)) {
throw new moodle_exception('accessdenied', 'admin');
}
// Now, we can get safely all the blocked users.
$users = message_get_blocked_users($user);
$blockedusers = array();
foreach ($users as $user) {
$newuser = array(
'id' => $user->id,
'fullname' => fullname($user),
);
$userpicture = new user_picture($user);
$userpicture->size = 1; // Size f1.
$newuser['profileimageurl'] = $userpicture->get_url($PAGE)->out(false);
$blockedusers[] = $newuser;
}
$results = array(
'users' => $blockedusers,
'warnings' => $warnings
);
return $results;
}
/**
* Get blocked users return description.
*
* @return external_single_structure
* @since 2.9
*/
public static function get_blocked_users_returns() {
return new external_single_structure(
array(
'users' => new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'User ID'),
'fullname' => new external_value(PARAM_NOTAGS, 'User full name'),
'profileimageurl' => new external_value(PARAM_URL, 'User picture URL', VALUE_OPTIONAL)
)
),
'List of blocked users'
),
'warnings' => new external_warnings()
)
);
}
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since 2.9
*/
public static function mark_message_read_parameters() {
return new external_function_parameters(
array(
'messageid' => new external_value(PARAM_INT, 'id of the message (in the message table)'),
'timeread' => new external_value(PARAM_INT, 'timestamp for when the message should be marked read')
)
);
}
/**
* Mark a single message as read, trigger message_viewed event
*
* @param int $messageid id of the message (in the message table)
* @param int $timeread timestamp for when the message should be marked read
* @return external_description
* @throws invalid_parameter_exception
* @throws moodle_exception
* @since 2.9
*/
public static function mark_message_read($messageid, $timeread) {
global $CFG, $DB, $USER;
// Check if private messaging between users is allowed.
if (empty($CFG->messaging)) {
throw new moodle_exception('disabled', 'message');
}
// Warnings array, it can be empty at the end but is mandatory.
$warnings = array();
// Validate params.
$params = array(
'messageid' => $messageid,
'timeread' => $timeread
);
$params = self::validate_parameters(self::mark_message_read_parameters(), $params);
// Validate context.
$context = context_system::instance();
self::validate_context($context);
$message = $DB->get_record('message', array('id' => $params['messageid']), '*', MUST_EXIST);
if ($message->useridto != $USER->id) {
throw new invalid_parameter_exception('Invalid messageid, you don\'t have permissions to mark this message as read');
}
$messageid = message_mark_message_read($message, $params['timeread']);
$results = array(
'messageid' => $messageid,
'warnings' => $warnings
);
return $results;
}
/**
* Returns description of method result value
*
* @return external_description
* @since 2.9
*/
public static function mark_message_read_returns() {
return new external_single_structure(
array(
'messageid' => new external_value(PARAM_INT, 'the id of the message in the message_read table'),
'warnings' => new external_warnings()
)
);
}
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since 3.1
*/
public static function delete_message_parameters() {
return new external_function_parameters(
array(
'messageid' => new external_value(PARAM_INT, 'The message id'),
'userid' => new external_value(PARAM_INT, 'The user id of who we want to delete the message for'),
'read' => new external_value(PARAM_BOOL, 'If is a message read', VALUE_DEFAULT, true)
)
);
}
/**
* Deletes a message
*
* @param int $messageid the message id
* @param int $userid the user id of who we want to delete the message for
* @param bool $read if is a message read (default to true)
* @return external_description
* @throws moodle_exception
* @since 3.1
*/
public static function delete_message($messageid, $userid, $read = true) {
global $CFG, $DB;
// Check if private messaging between users is allowed.
if (empty($CFG->messaging)) {
throw new moodle_exception('disabled', 'message');
}
// Warnings array, it can be empty at the end but is mandatory.
$warnings = array();
// Validate params.
$params = array(
'messageid' => $messageid,
'userid' => $userid,
'read' => $read
);
$params = self::validate_parameters(self::delete_message_parameters(), $params);
// Validate context.
$context = context_system::instance();
self::validate_context($context);
$messagestable = $params['read'] ? 'message_read' : 'message';
$message = $DB->get_record($messagestable, array('id' => $params['messageid']), '*', MUST_EXIST);
$user = core_user::get_user($params['userid'], '*', MUST_EXIST);
core_user::require_active_user($user);
$status = false;
if (message_can_delete_message($message, $user->id)) {
$status = message_delete_message($message, $user->id);;
} else {
throw new moodle_exception('You do not have permission to delete this message');
}
$results = array(
'status' => $status,
'warnings' => $warnings
);
return $results;
}
/**
* Returns description of method result value
*
* @return external_description
* @since 3.1
*/
public static function delete_message_returns() {
return new external_single_structure(
array(
'status' => new external_value(PARAM_BOOL, 'True if the message was deleted, false otherwise'),
'warnings' => new external_warnings()
)
);
}
}