MDL-61919 core_message: implement privacy provider

lang/en/message.php

@@ -95,6 +95,29 @@
 $string['outputnotavailable'] = 'Not available';
 $string['outputnotconfigured'] = 'Not configured';
 $string['permitted'] = 'Permitted';
+$string['privacy:metadata:messages'] = 'Message/notifications';
+$string['privacy:metadata:messages:component'] = 'The component responsible for sending the message/notification';
+$string['privacy:metadata:messages:contexturl'] = 'The URL related to a notification';
+$string['privacy:metadata:messages:contexturlname'] = 'The name of the context';
+$string['privacy:metadata:messages:eventtype'] = 'The event type';
+$string['privacy:metadata:messages:fullmessage'] = 'The full message/notification';
+$string['privacy:metadata:messages:fullmessageformat'] = 'The message/notification format';
+$string['privacy:metadata:messages:fullmessagehtml'] = 'The HTML of the message/notification';
+$string['privacy:metadata:messages:notification'] = 'Flag whether or not this is a notification';
+$string['privacy:metadata:messages:smallmessage'] = 'The small message/notification';
+$string['privacy:metadata:messages:subject'] = 'The subject of the message/notification';
+$string['privacy:metadata:messages:timecreated'] = 'The date at which the message/notification was created';
+$string['privacy:metadata:messages:timeread'] = 'The date at which the message/notification was read';
+$string['privacy:metadata:messages:timeuserfromdeleted'] = 'The date at which the message/notification was deleted by the sender';
+$string['privacy:metadata:messages:timeusertodeleted'] = 'The date at which the message/notification was deleted by the receiver';
+$string['privacy:metadata:messages:useridfrom'] = 'The ID of the user who sent the notification';
+$string['privacy:metadata:messages:useridto'] = 'The ID of the user who received the notification';
+$string['privacy:metadata:message_contacts'] = 'The list of contacts';
+$string['privacy:metadata:message_contacts:blocked'] = 'Flag whether or not the user is blocked';
+$string['privacy:metadata:message_contacts:contactid'] = 'The ID of the user who is a contact';
+$string['privacy:metadata:message_contacts:userid'] = 'The ID of the user whose contact list we are viewing';
+$string['privacy:metadata:preference:core_message_settings'] = 'Settings related to messaging';
+$string['privacy:request:preference:set'] = 'The value of the setting \'{$a->name}\' was \'{$a->value}\'';
 $string['processorsettings'] = 'Processor settings';
 $string['removecontact'] = 'Remove contact';
 $string['removecoursefilter'] = 'Remove filter for course {$a}';
@@ -122,6 +145,7 @@
 $string['togglemessagemenu'] = 'Toggle messages menu';
 $string['touserdoesntexist'] = 'You can not send a message to a user id ({$a}) that doesn\'t exist';
 $string['unblockcontact'] = 'Unblock contact';
+$string['unknownuser'] = 'Unknown user';
 $string['unreadnotification'] = 'Unread notification: {$a}';
 $string['unreadnewmessage'] = 'New message from {$a}';
 $string['userisblockingyou'] = 'This user has blocked you from sending messages to them';