/**
* Returns the active providers for the user specified, based on capability
*
* @param int $userid id of user
* @return array An array of message providers
*/
function message_get_providers_for_user($userid) {
global $DB, $CFG;
$systemcontext = context_system::instance();
$providers = get_message_providers();
// Remove all the providers we aren't allowed to see now
foreach ($providers as $providerid => $provider) {
if (!empty($provider->capability)) {
if (!has_capability($provider->capability, $systemcontext, $userid)) {
unset($providers[$providerid]); // Not allowed to see this
continue;
}
}
// Ensure user is not allowed to configure instantmessage if it is globally disabled.
if (!$CFG->messaging && $provider->name == 'instantmessage') {
unset($providers[$providerid]);
continue;
}
// If the component is an enrolment plugin, check it is enabled
list($type, $name) = normalize_component($provider->component);
if ($type == 'enrol') {
if (!enrol_is_enabled($name)) {
unset($providers[$providerid]);
continue;
}
}
}
return $providers;
}
/**
* Returns the active providers for the user specified, based on capability
*
* @param int $userid id of user
* @return array An array of message providers
*/
function message_get_providers_for_user($userid) {
global $DB, $CFG;
$providers = get_message_providers();
// Ensure user is not allowed to configure instantmessage if it is globally disabled.
if (!$CFG->messaging) {
foreach ($providers as $providerid => $provider) {
if ($provider->name == 'instantmessage') {
unset($providers[$providerid]);
break;
}
}
}
// If the component is an enrolment plugin, check it is enabled
foreach ($providers as $providerid => $provider) {
list($type, $name) = core_component::normalize_component($provider->component);
if ($type == 'enrol' && !enrol_is_enabled($name)) {
unset($providers[$providerid]);
}
}
// Now we need to check capabilities. We need to eliminate the providers
// where the user does not have the corresponding capability anywhere.
// Here we deal with the common simple case of the user having the
// capability in the system context. That handles $CFG->defaultuserroleid.
// For the remaining providers/capabilities, we need to do a more complex
// query involving all overrides everywhere.
$unsureproviders = array();
$unsurecapabilities = array();
$systemcontext = context_system::instance();
foreach ($providers as $providerid => $provider) {
if (empty($provider->capability) || has_capability($provider->capability, $systemcontext, $userid)) {
// The provider is relevant to this user.
continue;
}
$unsureproviders[$providerid] = $provider;
$unsurecapabilities[$provider->capability] = 1;
unset($providers[$providerid]);
}
if (empty($unsureproviders)) {
// More complex checks are not required.
return $providers;
}
// Now check the unsure capabilities.
list($capcondition, $params) = $DB->get_in_or_equal(
array_keys($unsurecapabilities), SQL_PARAMS_NAMED);
$params['userid'] = $userid;
$sql = "SELECT DISTINCT rc.capability, 1
FROM {role_assignments} ra
JOIN {context} actx ON actx.id = ra.contextid
JOIN {role_capabilities} rc ON rc.roleid = ra.roleid
JOIN {context} cctx ON cctx.id = rc.contextid
WHERE ra.userid = :userid
AND rc.capability $capcondition
AND rc.permission > 0
AND (".$DB->sql_concat('actx.path', "'/'")." LIKE ".$DB->sql_concat('cctx.path', "'/%'").
" OR ".$DB->sql_concat('cctx.path', "'/'")." LIKE ".$DB->sql_concat('actx.path', "'/%'").")";
if (!empty($CFG->defaultfrontpageroleid)) {
$frontpagecontext = context_course::instance(SITEID);
list($capcondition2, $params2) = $DB->get_in_or_equal(
array_keys($unsurecapabilities), SQL_PARAMS_NAMED);
$params = array_merge($params, $params2);
$params['frontpageroleid'] = $CFG->defaultfrontpageroleid;
$params['frontpagepathpattern'] = $frontpagecontext->path . '/';
$sql .= "
UNION
SELECT DISTINCT rc.capability, 1
FROM {role_capabilities} rc
JOIN {context} cctx ON cctx.id = rc.contextid
WHERE rc.roleid = :frontpageroleid
AND rc.capability $capcondition2
AND rc.permission > 0
AND ".$DB->sql_concat('cctx.path', "'/'")." LIKE :frontpagepathpattern";
}
$relevantcapabilities = $DB->get_records_sql_menu($sql, $params);
// Add back any providers based on the detailed capability check.
foreach ($unsureproviders as $providerid => $provider) {
if (array_key_exists($provider->capability, $relevantcapabilities)) {
$providers[$providerid] = $provider;
}
}
return $providers;
}
*
* @package core_message
* @copyright 2011 Lancaster University Network Services Limited
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once dirname(__FILE__) . '/../config.php';
require_once $CFG->dirroot . '/message/lib.php';
require_once $CFG->libdir . '/adminlib.php';
// This is an admin page
admin_externalpage_setup('defaultmessageoutputs');
// Require site configuration capability
require_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM));
// Fetch processors
$processors = get_message_processors(true);
// Fetch message providers
$providers = get_message_providers();
if (($form = data_submitted()) && confirm_sesskey()) {
$preferences = array();
// Prepare default message outputs settings
foreach ($providers as $provider) {
$componentproviderbase = $provider->component . '_' . $provider->name;
foreach (array('permitted', 'loggedin', 'loggedoff') as $setting) {
$value = null;
$componentprovidersetting = $componentproviderbase . '_' . $setting;
if ($setting == 'permitted') {
// if we deal with permitted select element, we need to create individual
// setting for each possible processor. Note that this block will
// always be processed first after entring parental foreach iteration
// so we can change form values on this stage.
foreach ($processors as $processor) {
$value = '';
