wildduck/imap-core/lib/commands/uid-expunge.js

'use strict';

let imapTools = require('../imap-tools');

module.exports = {
    state: 'Selected',

    schema: [{
        name: 'range',
        type: 'sequence'
    }],

    handler(command, callback) {

        // Check if EXPUNGE method is set
        if (typeof this._server.onExpunge !== 'function') {
            return callback(null, {
                response: 'NO',
                message: 'EXPUNGE not implemented'
            });
        }

        // Do nothing if in read only mode
        if (this.selected.readOnly) {
            return callback(null, {
                response: 'OK'
            });
        }

        let range = command.attributes[0] && command.attributes[0].value || '';
        if (!imapTools.validateSequnce(range)) {
            return callback(new Error('Invalid sequence set for UID EXPUNGE'));
        }
        let messages = imapTools.getMessageRange(this.selected.uidList, range, true);

        this._server.onExpunge(this.selected.mailbox, {
            isUid: true,
            messages
        }, this.session, (err, success) => {
            if (err) {
                return callback(err);
            }

            callback(null, {
                response: success === true ? 'OK' : 'NO',
                code: typeof success === 'string' ? success.toUpperCase() : false
            });
        });
    }
};